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Background and Purpose: Mandibulectomy remains the treatment of choice for oral cavity squamous cell carcinoma with infiltration of bone and for benign tumors with full mandibular thickness involvement. Although bone resection margins are critical for patient outcomes, intraoperative immediate bone margins assessment is inadequate, and few alternative options have been described. The purpose of this study was to describe the use of an existing intraoperative radiographic system for objective determination of bone resection margins during mandibulectomy., Methods: We conducted a retrospective case series of all patients at the Greater Baltimore Medical Center who underwent mandibulectomy and received intraoperative Faxitron radiography from January 1, 2016, to March 1, 2019. Patient characteristics including age, sex, diagnosis, tumor location, clinical and pathologic stage, procedure performed, and bone resection margins were reviewed., Results: A total of 10 patients underwent mandibulectomy with intraoperative radiography. Nine (90%) received surgery for squamous cell carcinoma, with 1 (10%) for ameloblastoma. Out of those with squamous cell carcinoma, tumor location varied, and all were clinically stage T4. Final pathologic margins were negative in all cases (10/10), though in 2 cases, close margins were assessed intraoperatively, leading to further resection or change in operative plan., Conclusion: Intraoperative radiographic assessment of bone resection margins is a promising technique, though further validation is required.

Importance: High-volume hospital care for laryngectomy has been shown to be associated with reduced morbidity, mortality, and costs; however, most hospitals in the United States do not perform high volumes of laryngectomies. The influence of market competition on charges and costs for such patients has not been defined., Objective: To examine the association between regional hospital market concentration, hospital charges, and costs for laryngectomy., Design, Setting, and Participants: The Nationwide Inpatient Sample was used to identify 34 193 patients who underwent laryngectomy for a malignant laryngeal or hypopharyngeal neoplasm from January 1, 2003, to December 31, 2011. Hospital laryngectomy volume was modeled as a categorical variable. Hospital market concentration was evaluated using a variable-radius Herfindahl-Hirschman Index from the 2003, 2006, and 2009 Hospital Market Structure Files. Statistical analysis was performed from May 19 to August 15, 2018., Main Outcomes and Measures: Multivariable generalized linear regression was used to evaluate associations between market concentration and total charges and costs for laryngectomy., Results: Among the 34 193 patients (19.3% female and 80.7% male; mean age, 62.7 years [range, 20.0-96.0 years]), 69.2% of procedures were performed at hospitals in highly concentrated (noncompetitive) markets and 26.2% were performed at hospitals in unconcentrated (highly competitive) markets. Most high-volume hospitals (68.0%) were located in highly concentrated markets, followed by unconcentrated markets (32.0%). Market share and volume were not associated with significant differences in total charges. Unconcentrated markets were associated with 28% higher costs (95% CI, 8%-53%) relative to moderately concentrated and highly concentrated markets. High-volume hospitals were associated with 22% lower costs (95% CI, -36% to -5%)., Conclusions and Relevance: Competition among hospitals is associated with increased costs of care for laryngectomy. High-volume hospital care is associated with lower costs of care. These data suggest that hospital market consolidation of laryngectomy at centers able to meet minimum volume thresholds may improve health care value.

Background: In the era of deintensification, little data are available regarding patients' treatment preferences. The current study evaluated treatment-related priorities, concerns, and regret among patients with head and neck squamous cell cancer (HNSCC)., Methods: A total of 150 patients with HNSCC ranked the importance of 10 nononcologic treatment goals relative to the oncologic goals of cure and survival. The level of concern regarding 11 issues and decision regret was recorded. Median rank was reported overall, and factors associated with odds of rank as a top 3 priority were modeled using logistic regression., Results: Among the treatment effects analyzed, the odds of being a top 3 priority was especially high for cure (odds, 9.17; 95% confidence interval [95% CI], 5.05-16.63), followed by survival and swallow (odds, 1.26 [95% CI, 0.88-1.80] and odds, 0.85 [95% CI, 0.59-1.21], respectively). Prioritization of cure, survival, and swallow was similar based on human papillomavirus (HPV) tumor status. By increasing decade of age, older participants were found to be significantly less likely than younger individuals to prioritize survival (odds ratio, 0.72; 95% CI, 0.52-1.00). Concerns regarding mortality (P = .04) and transmission of HPV to the patient's spouse (P = .03) were more frequent among participants with HPV-associated HNSCC. Regret increased with additional treatment modalities (P = .02)., Conclusions: Patients with HNSCC overwhelming prioritize cure, followed by survival and swallow. The decreased prioritization of survival by older age supports further examination of treatment preference by age. The precedence of oncologic over nononcologic priorities among patients regardless of HPV tumor status supports the conservative adoption of deintensification regimens until the interplay between competing oncologic and nononcologic treatment goals is better understood., (© 2019 American Cancer Society.)

Head and neck cancer (HNC) guidelines recommend regular multidisciplinary team (MDT) monitoring and early intervention to optimize dysphagia outcomes; however, many factors affect the ability to achieve these goals. The aims of this study were to explore the barriers/facilitators to establishing and sustaining a MDT HNC care pathway and to examine the dysphagia-related speech-language pathology (SLP) and dietetic components of the pathway. Using the Consolidated Framework for Implementation Research (CFIR), a mixed methods study design was used to evaluate an established MDT HNC pathway. Ten MDT members provided perceptions of facilitators/barriers to implementing and sustaining the pathway. Patients attending the SLP and dietetic components of the pathway who commenced treatment between 2013 and 2014 (n = 63) were audited for attendance, outcome data collected per visit, and swallowing outcomes to 24-month post-treatment. Dysphagia outcomes were compared to a published cohort who had received intensive prophylactic dysphagia management. Multiple CFIR constructs were identified as critical to implementing and sustaining the pathway. Complexity was a barrier. Patient attendance was excellent during treatment, with low rates of non-compliance (< 15%) to 24 months. Collection of clinician/patient outcome tools was good during treatment, but lower post-treatment. Dysphagia outcomes were good and comparable to prior published data. The pathway provided patients with access to regular supportive care and provided staff opportunities to provide early and ongoing dysphagia monitoring and management. However, implementing and sustaining a HNC pathway is complex, requiring significant staff resources, financial investment, and perseverance. Regular audits are necessary to monitor the quality of the pathway.

Importance: A volume-outcome association exists for larynx cancer surgery, but to date it has not been investigated for specific surgical procedures., Objectives: To characterize the volume-outcome association specifically for laryngectomy surgery and to identify a minimum hospital volume threshold associated with improved outcomes., Design, Setting, and Participants: In this cross-sectional study, the Nationwide Inpatient Sample was used to identify 45 156 patients who underwent laryngectomy procedures for a malignant laryngeal or hypopharyngeal neoplasm between January 2001 and December 2011. The analysis was performed in 2018. Hospital laryngectomy volume was modeled as a categorical variable., Main Outcomes and Measures: Associations between hospital volume and in-hospital mortality, complications, length of hospitalization, and costs were examined using multivariate logistic regression analysis., Results: Among 45 156 patients (mean age, 62.6 years; age range, 20-96 years; 80.2% male) at 5516 hospitals, higher-volume hospitals were more likely to be teaching hospitals in urban locations; were more likely to treat patients who had hypopharyngeal cancer, were of white race/ethnicity, were admitted electively, had no comorbidity, and had private insurance; and were more likely to perform flap reconstruction or concurrent neck dissection. After controlling for all other variables, hospitals treating more than 6 cases per year were associated with lower odds of surgical and medical complications, with a greater reduction in the odds of complications with increasing hospital volume. High-volume hospitals in the top-volume quintile (>28 cases per year) were associated with decreased odds of in-hospital mortality (odds ratio, 0.45; 95% CI, 0.23-0.88), postoperative surgical complications (odds ratio, 0.63; 95% CI, 0.50-0.79), and acute medical complications (odds ratio, 0.63; 95% CI, 0.48-0.81). A statistically meaningful negative association was observed between very high-volume hospital care and the mean incremental length of hospitalization (-3.7 days; 95% CI, -4.9 to -2.4 days) and hospital-related costs (-$4777; 95% CI, -$9463 to -$900)., Conclusions and Relevance: Laryngectomy outcomes appear to be associated with hospital volume, with reduced morbidity associated with a minimum hospital volume threshold and with reduced mortality, morbidity, length of hospitalization, and costs associated with higher hospital volume. These data support the concept of centralization of complex care at centers able to meet minimum volume thresholds to improve patient outcomes.

Background: The long-term results of surgical parathyroidectomy (PTX) in end-stage renal disease (ESRD) patients are less well known in the modern era of newer activated vitamin-D analogs, calcimimetics and intraoperative monitoring of parathyroid hormone (PTH)., Methods: We performed a retrospective chart review of all ESRD patients undergoing PTX at the University of Mississippi Medical Center between January 2005 and August 2011, with follow-up data as available up to 4 years. All PTXs were performed with intraoperative second-generation PTH monitoring and targeted gland size reduction., Results: The cohort (N = 37) was relatively young with a mean (±SD) age of 48.4 ± 13.9. 94.6% of the subjects were African American and 59.5% female. Preoperatively, 45.9% received cinacalcet (CNC) at a mean dose of 63.5 ± 20.9 mg. The size of the largest removed glands measured 1.7 ± 0.8 cm and almost all (94.6%) glands had hyperplasia on histology. The mean length of inpatient stay was 5.5 ± 2.4 days. Preoperative calcium/phosphorus measured 9.6 ± 1.2/6.6 ± 1.7 mg/dL with PTH concentrations of 1589 ± 827 pg/mL. Postoperative PTH values measured 145.4 ± 119.2 pg/mL. Preoperative PTH strongly correlated (P < 0.0001) with both alkaline phosphatase (ALP) levels (r: 0.596) and the number of inpatient days (r: 0.545), but not with CNC administration. Independent predictors for the duration of hospitalization were preoperative ALP (beta 0.469; P = 0.001) and age (beta -0.401; P = 0.005) (R 2 0.45); for postoperative hypocalcemia, age (beta: -0.321; P = 0.006) and preoperative PTH (beta: 0.431; P = 0.036) were significant in linear regression models with stepwise selection., Conclusion: Gland-sparing PTX achieved acceptable control of ESRD-associated hyperparathyroidism in most patients from a socioeconomically challenged, underserved population of the United States., (© 2018 International Society for Hemodialysis.)

Objective: To determine the relationship between frailty and comorbidity, in-hospital mortality, postoperative complications, length of hospital stay (LOS), and costs in head and neck cancer (HNCA) surgery., Study Design: Cross-sectional analysis., Methods: Discharge data from the Nationwide Inpatient Sample for 159,301 patients who underwent ablative surgery for a malignant oral cavity, laryngeal, hypopharyngeal, or oropharyngeal neoplasm in 2001 to 2010 was analyzed using cross-tabulations and multivariate regression modeling. Frailty was defined based on frailty-defining diagnosis clusters from the Johns Hopkins Adjusted Clinical Groups frailty-defining diagnosis indicator., Results: Frailty was identified in 7.4% of patients and was significantly associated with advanced comorbidity (odds ratio [OR] = 1.5[1.3-1.8]), Medicaid (OR = 1.5[1.3-1.8]), major procedures (OR = 1.6[1.4-1.8]), flap reconstruction (OR = 1.7[1.3-2.1]), high-volume hospitals (OR = 0.7[0.5-1.0]), discharge to a short-term facility (OR = 4.4[2.9-6.7]), or other facility (OR = 5.4[4.5-6.6]). Frailty was a significant predictor of in-hospital death (OR = 1.6[1.1-2.4]), postoperative surgical complications (OR = 2.0[1.7-2.3]), acute medical complications (OR = 3.9[3.2-4.9]), increased LOS (mean, 4.9 days), and increased mean incremental costs ($11,839), and was associated with higher odds of surgical complications and increased costs than advanced comorbidity. There was a significant interaction between frailty and comorbidity for acute medical complications and length of hospitalization, with a synergistic effect on the odds of medical complications and LOS in patients with comorbidity who were also frail., Conclusion: Frailty is an independent predictor of postoperative morbidity, mortality, LOS, and costs in HNCA surgery patients, and has a synergistic interaction with comorbidity that is associated with an increased likelihood of medical complications and greater LOS in patients with comorbidity who are also frail., Level of Evidence: 2c. Laryngoscope, 128:102-110, 2018., (© 2017 The American Laryngological, Rhinological and Otological Society, Inc.)

Background: Patients with human papillomavirus (HPV)-related oropharyngeal cancer (OPC) have improved survival when compared with those with HPV-negative OPC. Unfortunately, the American Joint Committee on Cancer seventh edition (AJCC-7ed) staging system does not account for the prognostic advantage observed with HPV-positive OPC. The purpose of the current study was to validate and compare 2 recently proposed staging systems for HPV-positive OPC., Methods: Patients treated for HPV-positive OPC from 2005 to 2015 at Johns Hopkins Hospital (JHH) were included for analysis. The International Collaboration on Oropharyngeal cancer Network for Staging (ICON-S) and The University of Texas MD Anderson Cancer Center (MDACC) staging systems were applied and survival was calculated using Kaplan-Meier methods. Cox proportional hazard regression was used to determine the relationship between stage of disease and survival. Models were compared using the Akaike information criterion (AIC)., Results: A total of 435 patients were eligible for analysis. There was a dramatic shift in lymph node category and overall stage of disease when ICON-S and MDACC stage were applied to the JHH cohort. There was superior stratification of overall survival and progression-free survival by ICON-S stage. Both proposed models had an improved fit based on AIC scores (P<.001 for both) over the AJCC-7ed. The ICON-S staging system had the lowest AIC score, and thus a better fit within the JHH population., Conclusions: The current analysis provides external validation for both staging systems in an independent and heterogeneously treated patient population. Although the MDACC staging system is an improvement over the AJCC-7ed, the ICON-S stage provides superior stratification of overall and progression-free survival, thereby supporting its use as the updated AJCC staging system for OPC. Cancer 2017;123:1768-1777. © 2017 American Cancer Society., (© 2017 American Cancer Society.)

The purpose of this study was to suggest general guidelines in the management of the N0 neck of oral cavity and oropharyngeal adenoid cystic carcinoma (AdCC) in order to improve the survival of these patients and/or reduce the risk of neck recurrences. The incidence of cervical node metastasis at diagnosis of head and neck AdCC is variable, and ranges between 3% and 16%. Metastasis to the cervical lymph nodes of intraoral and oropharyngeal AdCC varies from 2% to 43%, with the lower rates pertaining to palatal AdCC and the higher rates to base of the tongue. Neck node recurrence may happen after treatment in 0-14% of AdCC, is highly dependent on the extent of the treatment and is very rare in patients who have been treated with therapeutic or elective neck dissections, or elective neck irradiation. Lymph node involvement with or without extracapsular extension in AdCC has been shown in most reports to be independently associated with decreased overall and cause-specific survival, probably because lymph node involvement is a risk factor for subsequent distant metastasis. The overall rate of occult neck metastasis in patients with head and neck AdCC ranges from 15% to 44%, but occult neck metastasis from oral cavity and/or oropharynx seems to occur more frequently than from other locations, such as the sinonasal tract and major salivary glands. Nevertheless, the benefit of elective neck dissection (END) in AdCC is not comparable to that of squamous cell carcinoma, because the main cause of failure is not related to neck or local recurrence, but rather, to distant failure. Therefore, END should be considered in patients with a cN0 neck with AdCC in some high risk oral and oropharyngeal locations when postoperative RT is not planned, or the rare AdCC-high grade transformation., (Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.)

Adenoid cystic carcinoma (AdCC) of the head and neck is a well-recognized pathologic entity that rarely occurs in the larynx. Although the 5-year locoregional control rates are high, distant metastasis has a tendency to appear more than 5 years post treatment. Because AdCC of the larynx is uncommon, it is difficult to standardize a treatment protocol. One of the controversial points is the decision whether or not to perform an elective neck dissection on these patients. Because there is contradictory information about this issue, we have critically reviewed the literature from 1912 to 2015 on all reported cases of AdCC of the larynx in order to clarify this issue. During the most recent period of our review (1991-2015) with a more exact diagnosis of the tumor histology, 142 cases were observed of AdCC of the larynx, of which 91 patients had data pertaining to lymph node status. Eleven of the 91 patients (12.1%) had nodal metastasis and, based on this low proportion of patients, routine elective neck dissection is therefore not recommended.

Adenoid cystic carcinoma (AdCC) is among the most common malignant tumors of the salivary glands. It is characterized by a prolonged clinical course, with frequent local recurrences, late onset of metastases and fatal outcome. High-grade transformation (HGT) is an uncommon phenomenon among salivary carcinomas and is associated with increased tumor aggressiveness. In AdCC with high-grade transformation (AdCC-HGT), the clinical course deviates from the natural history of AdCC. It tends to be accelerated, with a high propensity for lymph node metastasis. In order to shed light on this rare event and, in particular, on treatment implications, we undertook this review: searching for all published cases of AdCC-HGT. We conclude that it is mandatory to perform elective neck dissection in patients with AdCC-HGT, due to the high risk of lymph node metastases associated with transformation.

Regional metastasis is a prominent feature of head and neck squamous cell carcinoma (HNSCC) and is an important prognostic factor. The currently available imaging techniques for assessment of the neck have limitations in accuracy; thus, elective neck dissection has remained the usual choice of management of the clinically N0 neck (cN0) for tumors with significant (≥20%) incidence of occult regional metastasis. As a consequence, the majority of patients without regional metastasis will undergo unnecessary treatment. The purpose of this review was to discuss new developments in techniques that potentially improve the accuracy of the assessment of the neck in patients with HNSCC. Although imaging has improved in the last decades, a limitation common to all imaging techniques is a lack of sensitivity for small tumor deposits. Therefore, complementary to improvements in imaging techniques, developments in more invasive diagnostic procedures, such as sentinel node biopsy (SNB) will add to the accuracy of diagnostic algorithms for the staging of the neck., (© 2014 Wiley Periodicals, Inc.)

Background: [(99m)Tc]Tilmanocept, a novel CD206 receptor-targeted radiopharmaceutical, was evaluated in an open-label, phase III trial to determine the false negative rate (FNR) of sentinel lymph node biopsy (SLNB) relative to the pathologic nodal status in patients with intraoral or cutaneous head and neck squamous cell carcinoma (HNSCC) undergoing tumor resection, SLNB, and planned elective neck dissection (END). Negative predictive value (NPV), overall accuracy of SLNB, and the impact of radiopharmaceutical injection timing relative to surgery were assessed., Methods and Findings: This multicenter, non-randomized, single-arm trial (ClinicalTrials.gov identifier NCT00911326) enrolled 101 patients with T1-T4, N0, and M0 HNSCC. Patients received 50 µg [(99m)Tc]tilmanocept radiolabeled with either 0.5 mCi (same day) or 2.0 mCi (next day), followed by lymphoscintigraphy, SLNB, and END. All excised tissues were evaluated for tissue type and tumor presence. [(99m)Tc]Tilmanocept identified one or more SLNs in 81 of 83 patients (97.6 %). Of 39 patients identified with any tumor-positive nodes (SLN or non-SLN), one patient had a single tumor-positive non-SLN in whom all SLNs were tumor-negative, yielding an FNR of 2.56 %; NPV was 97.8 % and overall accuracy was 98.8 %. No significant differences were observed between same-day and next-day procedures., Conclusions: Use of receptor-targeted [(99m)Tc]tilmanocept for lymphatic mapping allows for a high rate of SLN identification in patients with intraoral and cutaneous HNSCC. SLNB employing [(99m)Tc]tilmanocept accurately predicts the pathologic nodal status of intraoral HNSCC patients with low FNR, high NPV, and high overall accuracy. The use of [(99m)Tc]tilmanocept for SLNB in select patients may be appropriate and may obviate the need to perform more extensive procedures such as END.

Neck dissection is an important treatment for metastases from upper aerodigestive carcinoma; an event that markedly reduces survival. Since its inception, the philosophy of the procedure has undergone significant change from one of radicalism to the current conservative approach. Furthermore, nonsurgical modalities have been introduced, and, in many situations, have supplanted neck surgery. The refinements of imaging the neck based on the concept of neck level involvement has encouraged new philosophies to evolve that seem to benefit patient outcomes particularly as this relates to diminished morbidity. The purpose of this review was to highlight the new paradigms for surgical removal of neck metastases using an evidence-based approach., (© 2014 Wiley Periodicals, Inc.)

In 2014, more than 40,000 people in the United States will be diagnosed with head and neck squamous cell cancer (HNSCC) and nearly 8400 people will die of the disease (www.cancer.org/acs/groups). Little is known regarding molecular targets that might lead to better therapies and improved outcomes for these patients. The incorporation of taxanes into the standard cisplatin/5-fluouracil initial chemotherapy for HNSCC has been associated with improved response rate and survival. Taxanes target the β-subunit of the tubulin heterodimers, the major protein in microtubules, and halt cell division at G2/M phase. Both laboratory and clinical research suggest a link between β-tubulin expression and cancer patient survival, indicating that patterns of expression for β-tubulin isotypes along with activity of tumor suppressors such as p53 or micro-RNAs could be useful prognostic biomarkers and could suggest therapeutic targets. © 2014 Wiley Periodicals, Inc., (© 2014 Wiley Periodicals, Inc.)

Objectives: In this retrospective study we evaluate the tolerability and outcomes after induction chemotherapy for patients with predominately low socioeconomic status (SES) with locally advanced head and neck cancer (LAHNC)., Methods: One hundred eighteen patients with LAHNC of the hypopharynx, larynx, oral cavity, or oropharynx began curative intent therapy with induction cisplatin (75 or 100 mg/m), docetaxel (75 mg/m), and 5-fluorouracil (750 mg/m×5 d or 1000 mg/m×4 d; continuous infusion) every 3 weeks (DPF) for a planned 2 to 3 cycles. All patients were to receive curative radiotherapy with concurrent systemic therapy. Associations were tested using χ test, and survival estimates were calculated using the Kaplan-Meier method., Results: Most patients (75.4%) were of low SES. Induction DPF was delivered for a median of 2 cycles (range, 1 to 3) and 14% of the patients (n=17) died during induction DPF. After DPF, 38.2% of patients were unable to complete or receive planned definitive therapy. Overall 15.3% of patients died during therapy, and mortality was associated with a Karnofsky performance status <80 (P=0.04). At 2 years the locoregional control was 52.7%, whereas the distant metastases free rate was 72.6%, and the overall survival rate was 34.1%. Low SES patients were less likely to achieve locoregional control (P=0.05) or survive (P=0.08)., Conclusions: In this population of LAHNC patients of low SES with a high tumor burden and poor performance status, use of induction DPF was associated with 15.3% mortality during therapy and precluded 38.2% of patients from initiating or completing planned definitive therapy.

Graves orbitopathy (GO) is an autoimmune disorder representing the most frequent extrathyroidal manifestation of Graves disease. It is rare, with an age-adjusted incidence of approximately 16.0 cases per 100,000 population per year in women and 2.9 cases per 100,000 population per year in men. GO is an inflammatory process characterized by edema and inflammation of the extraocular muscles and an increase in orbital connective tissue and fat. Despite recent progress in the understanding of its pathogenesis, GO often remains a major diagnostic and therapeutic challenge. It has become increasingly important to classify patients into categories based on disease activity at initial presentation. A Hertel exophthalmometer measurement of >2 mm above normal for race usually categorizes a patient as having moderate-to-severe GO. Encouraging smoking cessation and achieving euthyroidism in the individual patient are important. Simple treatment measures such as lubricants for lid retraction, nocturnal ointments for incomplete eye closure, prisms in diplopia, or botulinum toxin injections for upper-lid retraction can be effective in mild cases of GO. Glucocorticoids, orbital radiotherapy, and decompression/rehabilitative surgery are generally indicated for moderate-to-severe GO and for sight-threatening optic neuropathy. Future therapies, including rituximab aimed at treating the molecular and immunological basis of GO, are under investigation and hold promise for the future.

Otolaryngology-head and neck surgery, more commonly known as ear, nose, and throat surgery, is more than ear tubes and children's tonsils. It is an exciting and diverse surgical subspecialty that focuses on every kind of disorder of the head and neck. Otolaryngologists treat patients from infancy to geriatrics, delivering both medical and surgical care. There are also multiple opportunities to subspecialize after residency training. The information in this career development resource provides an understanding of otolaryngology and its subspecialty areas and training requirements., (Copyright © 2013 Elsevier Inc. All rights reserved.)

Unlabelled: Euthyroid Graves' orbitopathy (GO) combined with incidental papillary thyroid microcarcinoma has rarely been reported., Case Report: A 61-year-old Caucasian woman initially presented with progressive fatigue, exophthalmos, and thyroid function tests within normal limits. She underwent thyroidectomy, was found to have two incidental papillary thyroid microcarcinomas, and received radioactive iodine ablation to eliminate thyroid antigen. In addition to following her eye disease, TSH-receptor antibodies, thyroid stimulating immunoglobulins, and serum thyroglobulin measurements were recorded, demonstrating no evidence of thyroid cancer at four-year follow-up. At first, she had mild GO, developing into moderate-to-severe GO, and at 4 years she had Hertel measurements of 20 mm in both eyes., Conclusion: This report underscores the difficulty of managing GO even when thyroid function is normal(ized) and thyroid antigen exposure has been minimized. In addition, it illustrates why antithyroidal antibodies should be considered in cases of concomitant papillary thyroid cancer, as thyroid cells can be stimulated not only by TSH but also by TSH-receptor stimulating antibodies.

Background: Chondrolipoma is a rare form of a benign mesenchymal tumor containing mature cartilage and fatty tissue. Chondrolipomas may be found in almost any part of the body, particularly in the connective tissue of the breast, head and neck area, and in the skeletal muscle., Methods: We present the case of a 51-year-old woman complaining of 8 to 9 months of intermittent right cheek swelling. Magnetic resonance imaging (MRI) and CT scans showed a 4.0-cm fat-containing mass involving the right masseter muscle., Results: The patient was taken to the operating room for excision of the mass. The final pathologic diagnosis was chondrolipoma., Conclusions: We describe a case of a chondrolipoma in the masseter muscle., (Copyright © 2011 Wiley Periodicals, Inc.)

We are reporting on a series of two patients with end-stage renal disease on hemodialysis, presented for surgical parathyroidectomy secondary refractory hyperparathyroidism. Both patients had failed maximized medical managements, including higher-than-usual doses of the calcimimetic cinacalcet (270 and 180 mg/day, respectively). On physical exam, both patients had marked symmetrical craniofacial hypertrophy with coarse distortion of facial features, similar in appearance to past reports of Sagliker syndrome. On X-ray and computed tomographic exam, they had peculiar areas of bone absorption on the skull, imitating the radiologic appearance of multiple myeloma. Bone biopsy of the maxilla, however, did not show the expected brown tumor, but rather described only fibrosis and reactive bone formations. This phenotype developed while being on cinacalcet, progressed despite escalation of therapy, and improved only after parathyroidectomy. Both patients developed massive "hungry bone syndrome" after parathyroidectomy necessitating prolonged i.v. calcium infusion. This pattern of severe facial distortion likely represented an adverse consequence of severe tertiary hyperparathyroidism, along with supraphysiologic dose of cinacalcet administration and 25-hydroxy vitamin D deficiency in sensitive individuals. The genetic base of this observation remained unexplained., (© 2012 The Authors. Hemodialysis International © 2012 International Society for Hemodialysis.)

Head and neck squamous cell carcinoma (HNSCC) is a major cause of morbidity and mortality, and the alleviation thereof requires greater understanding of the pathobiologic behavior of HNSCC. Although the existence of cancer stem cells (CSCs) in most solid tumors has not been formally proven, application of the CSC concept has certainly enhanced understanding of HNSCC heterogeneity and progression. Recent data support the role of ALDH1(+) CD44(+) CSC in HNSCC, since the implantation of a few ALDH1(+) CD44(+) cells consistently gives rise to tumors that can be serially passaged in vivo. In addition to CSC biomarkers, recent explorations of CSC signaling pathways, gene expression, and localization in HNSCC carry significant clinical and therapeutic implications. Identification and characterization of CSC populations that regulate HNSCC growth, metastasis, and treatment resistance will facilitate development of novel diagnostic, therapeutic, and prognostic strategies. Furthermore, advances in multimodal imaging and nanotechnology, in conjunction with CSC models, may better elucidate the regulatory mechanisms that govern CSC biology in vivo, as well as develop platforms for targeted theragnostics. It is hoped that the promising applications of the CSC model in HNSCC will eventually alleviate the morbidity and mortality of this pervasive disease., (Copyright © 2011 Wiley Periodicals, Inc.)

Dendritic cell sarcoma, not otherwise specified (NOS), is an entity that is poorly defined because of its rarity and poorly understood pathogenesis. It is characterized by positive immunohistochemical staining for S-100 and CD1a, along with an absence of cytoplasmic Birbeck granules on electron microscopy. We report the case of a surgically inaccessible nasopharyngeal dendritic cell sarcoma, NOS, in a 34-year-old man. Treatment with chemotherapy along with adjuvant radiation therapy was successful in decreasing the size of the nasopharyngeal mass, and the patient remained free of any evidence of recurrence nearly 5 years after treatment.

Tumor-specific chromosomal rearrangements often produce potent fusion oncogenes, which induce tumorigenesis by 2 alternative mechanisms: deregulation of the cell cycle resulting in gene overexpression or gene fusion resulting in a hybrid, chimeric oncogene. Tumor-specific recurrent chromosomal translocations and novel fusion oncogenes in aggressive head and neck malignancies have diagnostic, therapeutic, and prognostic implications. Recently, pathognomonic fusion transcripts have been identified in various uncommon, aggressive head and neck malignancies, including mucoepidermoid carcinoma (MEC), adenoid cystic carcinoma (ACC), and NUT midline carcinoma (NMC). The t(11;19)(q12;p13) translocation in MEC results in fusion of the MECT1 gene at 19p13 and the MAML2 gene at 11q21. The MECT1-MAML2 fusion transcript, present in more than half of MECs, is associated with lower histologic grades and improved survival, suggesting both diagnostic and prognostic roles in clinical management. The t(6;9)(q22-23;p23-24) translocation in ACC results in fusion of the MYB gene at 6q22-23 and the NFIB gene at 9p23-24. The MYB-NFIB fusion transcript, present in at least one third of salivary ACCs, can be detected by new reverse transcription polymerase chain reaction screening methods, and has emerged as a potential therapeutic target. The t(15;19)(q14;p13.1) translocation in NMC results in fusion of the NUT gene at 15q14 and the BRD4 gene at 19p13.1. This occurs in two thirds of NMC. Because NMC lacks characteristic clinicopathologic features and established therapeutic options, the BRD4-NUT fusion transcript may represent both a diagnostic marker and an optimal target for disease-specific drug therapy. Moreover, immunohistochemical advances have yielded a promising new monoclonal antibody against the NUT antigen, which may improve NMC diagnosis. Next-generation sequencing methods, such as the use of massively parallel and paired-end sequencing in the study of cancer genomes, will likely disclose novel fusion transcripts in more human malignancies. Hopefully, as technological advances unravel the molecular pathogenesis of aggressive carcinomas, diagnostic and therapeutic options will evolve to improve clinical outcomes., (Copyright © 2011 Elsevier Inc. All rights reserved.)

Objective: To present a rare, benign lesion of the oral tongue and its treatment., Study Design: Case presentation and literature review., Methods: Case report., Results: A 68 year old male presented with an asymptomatic lateral oral tongue lesion which had been present for several years. Fine needle aspiration was consistent with pleomorphic adenoma versus myoepithelioma. Pathology following complete surgical excision revealed schwannoma. He remains without recurrence following excision., Conclusions: Oral tongue schwannoma is a rare lesion which is treated with complete surgical excision.

Objective: To determine whether nerve integrity monitor testing during thyroidectomy predicts recurrent laryngeal nerve (RLN) function after surgery., Design: Prospective cohort outcomes study, Patients: The study included 210 consecutive patients with thyroid abnormalities who underwent thyroidectomy., Methods: All patients were intraoperatively monitored with a nerve integrity monitoring system (Xomed NIM II; Medtronic Inc, Fridley, Minnesota), and their vocal cord function was assessed with fiberoptic laryngoscopy before and after surgery. Normal and impaired vocal cord function were compared using an independent t test with respect to postoperative vocal cord mobility, length of the RLN dissection, and the minimum stimulus needed to generate a response at the completion of surgery., Results: There was a statistically significant difference between the stimulus in milliamperes required to stimulate normal vs abnormal functioning nerves at the completion of the procedure at the cricoarytenoid joint (P = .02) and at the distal end of the RLN dissection (P < .01). A greater length of dissected nerve was associated with normal vocal cord function; however, it was not statistically significant (P = .07)., Conclusion: These data suggest that an RLN that responds at lower-intensity stimulation (

For Egypt, ethane is a vital chemical precursor, with the potential to significantly attract financial resources and drive economic growth. Enhancing its added value necessitates efficient recovery of ethane before it enters the national grid without processing. This research investigates the technical and economic feasibility of integrating natural gas liquids (NGLs) from three Egyptian NGLs plants—South Western Desert NGLs (SWD NGLs), North Western Desert NGLs (NWD NGLs), and East Mediterranean NGLs (EMD NGLs)—to improve ethane recovery from natural gas fields. The study focuses on revamping these NGLs plants using various NGLs recovery techniques, conducting a comprehensive comparison to identify the most effective methods for processing rich feed gas. Detailed design of the NGLs recovery processes was developed using HYSYS V.14 simulation software and supplementary calculation sheets. The design criteria encompass both technical and economic parameters to ensure a holistic approach in meeting project requirements. Results indicate a significant increase in ethane recovery: 16% for SWD NGLs, 10% for NWD NGLs (A, B, C), and 85% for EMD NGLs. This improvement will boost ethane feedstock for petrochemical companies from 2000 ton/day to 3500 ton/day, enabling increased polyethylene production. Economic analysis for the base case shows an expected internal rate of return (IRR) of 26%, a net present value (NPV) of USD 73 million, and a payback period of approximately 3 years. Sensitivity analysis on product prices, feed gas prices, and total capital investment confirms the project's economic viability, with all cases showing feasibility (IRR ≥ 15%) except when product prices fall below USD 225/ton for propane, USD 215/ton for liquefied petroleum gas (LPG), and USD 25/bbl for condensate. This study highlights the potential for enhanced ethane recovery, offering substantial economic benefits and supporting the growth of Egypt's petrochemical industry. [ABSTRACT FROM AUTHOR]

Cutaneous metastases from squamous cell carcinomas of the head and neck region are uncommon, and their location at the nasal tip is exceptionally rare. A patient, previously treated with surgery and chemoradiation for a hypopharyngeal squamous cell carcinoma, developed several red nodular skin lesions at the nasal tip. Biopsy revealed cutaneous metastasis from the primary tumor. This manifestation was previously described as a "clown nose," given their appearance and location. Skin lesions should raise suspicion of malignancy, despite their location at uncommon places, particularly in patients with previous diagnosed cancer. Clinicians must be aware that metastases from head and neck cancer can present as a "clown nose." [ABSTRACT FROM AUTHOR]

Sentinel lymph node biopsy (SLNB) is a minimally invasive method that was developed to stage the regional lymphatics of patients with cutaneous melanoma. Many studies performed worldwide have shown that SLNB is a feasible method to stage the cervical lymphatics in patients with head and neck squamous cell carcinoma (HNSCC). The accuracy of SLNB in patients with HNSCC is currently under investigation in a multicenter study sponsored by the American College of Surgeons Oncology Group that compares the results of SLNB with standard elective neck dissection. Research to date has also shown that multiple SLNs and individualized drainage patterns characterize head and neck mucosal sites. These findings suggest that lymphoscintigraphy alone may be useful to delineate the lymphatic basins that require treatment in patients with HNSCC and in patients whose head and neck lymphatics are disrupted because of prior surgery or irradiation.

Objectives/hypothesis: Nasopalatine duct cysts are the most common cystic lesion of nonodontogenic origin of the maxilla. The purposes of the study were to review the epidemiology and clinical presentation, to describe the radiographic and pathological findings, and to discuss surgical management of this entity., Study Design: Case presentations of two patients with nasopalatine duct cysts at a tertiary care institution with a review of the English medical literature from January 1960 to the present., Methods: A 69-year-old man presented with an asymptomatic swelling of the premaxilla, and a 17-year-old woman presented with a painful swelling of the hard palate. A computed tomography scan, fine-needle aspiration, and preoperative workup were obtained in both cases. Literature was reviewed with respect to epidemiology, etiology, presentation, diagnostic studies, operative management, and recurrence rates., Results: Computed tomography scan demonstrated midline ovoid cystic lesions in both cases. Fine-needle aspiration of both lesions revealed no evidence of malignancy. Surgical treatment consisted of enucleation in the first case and marsupialization in the second case. Both patients did well with no evidence of recurrence. Nasopalatine duct cyst presents in the fourth to sixth decades of life with a male predilection. Recurrence rates range from 0% to 11%., Conclusion: Nasopalatine duct cyst occurs in approximately 1% of the population. Presentation may be asymptomatic or include swelling, pain, and drainage from the hard palate. A well-circumscribed, round, ovoid, or heart-shaped radiolucency is seen on computed tomography. Pathological findings reveal squamous or respiratory cell types, or a combination of these, infiltrated by inflammatory cells. Enucleation is the preferred treatment with low recurrence rates.

In the past decade, the technique of sentinel lymph node biopsy (SLNB) has been applied to a vast array of primary neoplasms, ranging from head and neck melanoma to vulvar carcinoma. At present, experience with SLNB is greatest in patients with melanoma and breast cancer. In view of the well known complications associated with cervical node dissection, it has been suspected for some time that cervical SLNB, if successful, might reduce the morbidity associated with the definitive care of patients with head and neck cancers. This report assesses the current status of SLNB in the treatment of head and neck cancers; while formal investigations of the efficacy of this technique are recommended, SLNB has not yet been demonstrated to possess the same level of utility seen in SLNB in melanoma and breast cancer patients. As a consequence, the application of SLNB to head and neck cancers remains an experimental technique--one which has not yet acquired the status of the standard of patient care., (Copyright 2002 Elsevier Science Ltd.)

While mucosal-based melanomas of the head and neck region are uncommon lesions, when they do arise they usually follow an inexorably aggressive course. Experience with these tumors is, necessarily, limited; as such, well-worked out treatment protocols for the treatment of such lesions are in short supply. It appears as though mucosal melanomas (MuMs) develop more frequently in the nasal cavity and paranasal sinus region, and less often in the oral cavity. It seems that the incidence of nodal metastasis is significantly lower for sinonasal MuMs than it is for MuMs of the oral cavity; this observation may influence decisions about performing neck dissection as a function of location of the primary MuM. At present, surgical excision remains the mainstay of treatment; however, anatomical complexities within the region can hamper attempts at complete excision. Radiotherapy has not traditionally been relied on for routine treatment of MuM, although some recent reports have challenged this view. Chemotherapy is, at present, employed principally in the treatment of disseminated disease and for palliation. As a diagnostic matter, MuM belongs to the class of tumors that, on light microscopy, may with some regularity be confused with other malignancies (including sarcomas, plasmacytomas, and carcinomas); as a consequence, this is a diagnosis which is often best confirmed by way of ancillary testing via immunohistochemical studies. A better grasp of the best means of treating MuM will likely come only when large referral centers are able to pool their experiences with these uncommon yet virulent malignancies., (Copyright 2003 Wiley-Liss, Inc.)

Management options for patients with advanced neck node metastasis from head and neck cancer are controversial. Typically, N3 disease suggests a poor outcome because of difficulty with regional control and the high likelihood of distant metastases. Patients who are treated for cure are treated with aggressive multimodality treatment. Therefore, a critical assessment of the potential for cure or measurable palliation, patient comorbidity, and the risk of complications when considering treatment for patients with N3 disease figures prominently in treatment planning. The pretreatment evaluation and contemporary management of patients with N3 disease are discussed in this review.

Objectives/hypothesis: Sentinel lymph node biopsy is a minimally invasive method to stage the regional lymphatics that has revolutionized the management of patients with intermediate-thickness cutaneous melanoma. Head and neck surgeons have been encouraged by the accuracy of sentinel lymph node biopsy in cutaneous melanoma and have applied the technique to patients with head and neck squamous cell carcinoma (HNSCC). The objectives of the study were 1) to study the feasibility and accuracy of sentinel lymph node biopsy as a method to stage the regional lymphatics in HNSCC and 2) to determine whether there are qualitative differences between the cutaneous and mucosal lymphatics that would affect the technique used in HNSCC., Study Design: Two methods of investigation were employed: a prospective laboratory study using a feline model for sentinel lymph node biopsy and a retrospective review of patients who received lymphoscintigraphy before neck dissection and intraoperative identification of the sentinel lymph node., Methods: Lymphoscintigraphy and a gamma probe were used in four felines to study the kinetics of technetium-labeled sulfa colloid (Tc-SC) in the mucosal lymphatics. In the second part of the feline study, eight subjects were studied intraoperatively. Tc-SC and isosulfan blue dye were used to study the injection technique for the mucosal lymphatics and to determine the time course of the dye and Tc-SC to the sentinel lymph node. In Part II of the present study, a retrospective review of 33 patients with HNSCC was conducted. Twenty patients (stage N0) whose treatment included elective neck dissection were studied with preoperative lymphoscintigraphy and underwent intraoperative identification of the sentinel lymph node to determine the accuracy and feasibility of sentinel lymph node biopsy. Eight patients with palpable neck disease and five patients with recurrent or second primary disease whose previous treatment included neck dissection were also studied with lymphoscintigraphy before neck dissection., Results: In the feline study, both Tc-SC and isosulfan blue dye traversed the lymphatics rapidly, appearing in the sentinel lymph node in less than 5 minutes. Modification of the injection technique used for cutaneous melanoma was required to depict the sentinel lymph node of the base of tongue. In the human study, the sentinel lymph node was accurately identified in 19 of 20 (95%) N0 patients. On average, 2.9 sentinel lymph nodes (range, 1-5) were identified in 2.2 (range, 1-4) levels of the neck. Sentinel lymph nodes were bilateral in 4 of 19 patients. When the sentinel lymph node was identified, it accurately predicted the pathological nodal status of the regional lymphatics. Three of 20 patients had cervical metastases, and the sentinel lymph node was identified in 2 of 3 patients with pathologic nodes (pN+). Focal areas of radiotracer uptake were identified in seven of eight patients with palpable disease. These areas corresponded to the level with palpable disease in four patients. The lymphatics delineated by lymphoscintigraphy in the five patients with previous neck dissection were outside the levels that had been dissected. Lymphoscintigraphy depicted collateral patterns of lymphatic drainage., Conclusions: Sentinel lymph node biopsy is technically feasible and is a promising, minimally invasive method for staging the regional lymphatics in patients with stage N0 HNSCC. Lymphoscintigraphy alone may determine the levels that require treatment in patients with disrupted or previously operated cervical lymphatics.