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Ultrasound guided Cervical Plexus Block (CPB) is a technique that has been applied in parathyroid surgery. Main advantages of ultrasound technique include a direct view of nerves; local anaesthetic (LA) spreading during injection; reduced volume of LA; blood vessels and other structures injury is significantly reduced. It is especially useful in patients with serious comorbidities, in which possible peri-operative consequences and risks of general anaesthesia can be avoided. Based on our first results of the presented cases, we can say that superficial CPB is a safe and simple procedure in order to provide perioperative analgesia in parathyroid surgery.

Post-thyroidectomy bleeding is rare, but potentially life-threatening complication. Early recognition with immediate intervention is crucial for the management of this complication. Therefore, it is very important to identify possible risk factors of postoperative hemorrhage as well as timing of postoperative hematoma occurrence.Retrospective review of 6938 patients undergoing thyroidectomy in a tertiary center in a ten year period (2009-2019) revealed 72 patients with postoperative hemorrhage requiring reoperation. Each patient who developed postoperative hematoma was matched with four control patients that did not develop postoperative hematoma after thyroidectomy. The patients and controls were matched by the date of operation and surgeon performing thyroidectomy.The incidence of postoperative bleeding was 1.04%. On univariate analysis older age, male sex, higher BMI, higher ASA score, preoperative use of anticoagulant therapy, thyroidectomy for retrosternal goiter, larger thyroid specimens, larger dominant nodules, longer operative time, higher postoperative blood pressure and the use of postoperative subcutaneous heparin were identified as risk factors for postoperative bleeding. Sixty-nine patients (95.8%) bled within first 24 h after surgery.The rate of postoperative bleeding in our study is consistent with recent literature. Male sex, the use of preoperative anticoagulant therapy, thyroidectomy for retrosternal goiter and the use of postoperative subcutaneous heparin remained statistically significant on multivariate analysis (p 0.001). When identified, these risk factors may be an obstacle to the outpatient thyroidectomy in our settings.

Background/Aim. Establishing a preoperative diagnosis of thyroid follicular tumors is difficult due to the fact that the cell morphology of adenomas and carcinomas are similar and that capsular and vascular invasion cannot be determined by cytology. We analyzed predictive factors of follicular carcinoma in order to enable a surgeon to indicate operative treatment and to perform an adequate operation for each patient with a follicular neoplasm. Methods. In this retrospective study, we analyzed medical records of all patients with follicular thyroid tumors operated at an endocrine surgery unit of a tertiary referral academic hospital, between 2008 and 2012. A total of 263 operated patients were included and divided into follicular adenomas (n = 97) and follicular carcinomas (n = 166) based on the histopathology results. The most important demographic and clinical characteristics were analyzed by univariate and multivariate logistic regression analysis. Results. In adenoma group (19 males, 78 females) age range was 19?79, mean age 50. In carcinoma group (35 males, 131 females) age range was 15? 78, mean age 48. Univariate analysis showed that thyroglobulin concentration ? 500 ng/mL, tumor diameter < 30 mm, presence of more than one thyroid nodule and an afunctional/hypofunctional nodule were significantly more frequent in follicular carcinoma than in follicular adenoma. Independent predictive factors of malignancy were: elevated preoperative thyroglobulin concentration (? 500 ng/mL) and presence of more than one nodule. Based on our results we formed a nomogram, a two-dimensional diagram designed to enable estimation of preoperative probability of malignancy. Conclusion. Elevated preoperative thyroglobulin concentration, ? 500 ng/mL, and the presence of more than one nodule are independent predictors of malignancy for follicular thyroid carcinomas.

Ectopic thyroid tissue is a rare pathological finding bellow the diaphragm and extremely rare finding is ectopic thyroid tissue in the adrenal gland. Thyroid tissue can be located anywhere along the way of embryological migration pathway of thyroglossal duct. In most cases of ectopic thyroid tissue, it is located in the neck. Pathohistologically ectopic thyroid tissue in all cases was formed of follicular cells that expressed TTF-1, Thyroglobulin, PAX8, and cytokeratin 7, and there was lack expression of calretinin. In the literature we found 15 such cases. Women are much more affected than men (14:1), and it usually presents in the fifth decade (mean age 49). In all cases it was composed of normal follicular cells, and C cells were not found. Review of the literature reveals that adrenal ectopic thyroid tissue is almost always cystic, and has distinctive pathologic features. The most important thing is that ectopic thyroid tissue must be distinguished from metastatic deposits from thyroid gland carcinoma.

Objective Medullary thyroid carcinoma (MTC) can be very aggressive, and early diagnosis is based on routine measurement of serum calcitonin (CT) and RET genetic testing for hereditary forms. Basal serum CT (bCT) concentrations are useful in the early detection of MTC, although it is still unclear whether they can also be used for the differential diagnosis between MTC and C-cell hyperplasia (CCH). Since false-positive results can be obtained with the basal measurement of CT, a provocative test to evaluate stimulated CT (sCT) is often needed. The objective of this study was to investigate the utility of a calcium gluconate test for CT in distinguishing MTC from CCH, a precancerous condition in hereditary forms of MTCs but with unclear significance in sporadic MTCs. Methods A total of 74 patients underwent the calcium loading test before thyroidectomy, and bCT and sCT levels were compared with histologic results by receiver operating characteristic plot analyses. Results A peak CT level of 388.4 pg/mL after stimulation with calcium gluconate was able to significantly distinguish patients with MTC from those with CCH and those without C-cell pathology, with 81.8% sensitivity and 36.5% specificity. A bCT level of 16.1 pg/mL was able to distinguish between these 2 groups of patients with a sensitivity of 90%. Conclusion High-dose calcium test is an effective procedure that can be applied for differential diagnosis of MTC and CCH. Reference ranges for calcium sCT levels and CT thresholds in different groups of patients have been identified.

Background Rates of thyroid cancer in patients with multinodular goitre (MNG) vary widely, from 3 per cent in older studies to 35 per cent in more recent studies. The purpose of the present study was to evaluate the prevalence of thyroid cancer in patients operated on for MNG, and to determine risk factors for incidental thyroid malignancy. Methods A prospectively developed database of all patients who underwent thyroidectomy for a benign MNG at the high-volume endocrine surgery unit of a tertiary referral university hospital was interrogated. Results A total of 3233 patients were analysed, separated into three groups according to their functional thyroid status (hypothyroid, hyperthyroid or euthyroid). There were 2788 women (86.2 per cent); the mean patient age was 56.4 years and mean preoperative disease duration was 106.2 months. Incidental thyroid cancer was identified in 1026 patients (31.7 per cent), of which 917 (89.4 per cent) were papillary cancers. Multivariable regression analysis identified functional thyroid status, younger age, male sex, smaller adenoma size, smaller thyroid glands, Hashimoto’s thyroiditis and chronic non-specific thyroiditis as independent risk factors for thyroid cancer. Conclusion MNG was associated with a considerable rate of incidental thyroid cancer, which has been underestimated. A variety of factors should be taken into account when considering the malignant potential of a presumed benign MNG., A wide distribution of thyroid cancer rates has been demonstrated within a multinodular goitre. This study evaluated the incidence of and risk factors for thyroid cancer in patients operated on for benign multinodular goitre.

Objectives Primary hyperparathyroidism in juveniles is extremely rare condition, but in the last few decades the incidence is increasing. The aim of this study was to compare biochemical and clinical characteristics of juvenile and adult primary hyperparathyroidism patients. Methods A retrospective case-control study was conducted from 2004 until 2017 in high volume endocrine surgery center. Juvenile group consisted of all primary hyperparathyroidism patients younger than 20 who have undergone parathyroidectomy, and two-fold more patients older than 20 were classified in control (adult) group. Results A total of 14 patients with the age ≤20 years were included in the juvenile group, while 28 patients older than 20 were selected for the control group. Female-to-male ratio in juveniles was 1:1, and in adults 8:1 (p = 0.005). The most common form of the disease in juveniles was bone disease (42.9%) and most of adults were asymptomatic (39.3%). Mean preoperative serum calcium level was significantly higher in juveniles than in adults, 3.47 ± 0.74 mmol/L vs. 2.96 ± 0.25 mmol/L, p = 0.025. Mean preoperative PTH level was higher in juveniles than in control group, 572.6 ± 533.3 ng/L vs. 331.8 ± 347.5 ng/L, p = 0.089. Conclusion Clinical manifestations of primary hyperparathyroidism significantly differ in juvenile and adult patients. Juvenile primary hyperparathyroidism represents more severe form of the disease, often with end-organ damages, and it should be considered in patients with unspecific symptoms.

Backgraund/Aim. The Thyroid Specific Patient Reported Outcome Measure (ThyPRO) questionnaire is self-administered and intended to measure quality of life of thyroid patients. The aim of this study was to investigate the validity and reliability of the translated new, ThyPRO questionnaire in Serbian patients with thyroid disease. Methods. The translation process followed an internationally accepted methodology. The questionnaire was validated in 100 consecutive thyroid patients hospitalized in a tertiary level hospital, between April and August 2012. Internal reliabilities of ThyPRO scales were assesessed using Cronbach’s α coefficient. Association between age, gender, education, marital and employment status, place of living, diagnosis, current treatment, hormonal status and patient quality of life were determined using Pearson’s (r) and Spearman’s (q) correlation coefficients. Results. Internal consistency and reliability for ThyPRO scales were satisfactory. Cronbach’s α coefficients of 13 multi-item scales of the ThyPRO were > 0.83 (range 0.83-0.95). The scores, obtained by this questionnaire, correlated significantly with patients gender, employment status, diagnosis, current treatment and place of living. A highly significant inverse relationship was found between scores and hormonal status as well as between scores and disease duration. Patients’ age, marital status and thyroid-stimulating hormone level did not influence any scale score. Conclusion. The ThyPRO may be useful in measuring health-related quality of life in patients with thyroid disease in Serbia. [Projekat Ministarstva nauke Republike Srbije, br. 175 042]

Introduction/Objective. Adrenocortical carcinomas (ACCs) are very rare tumors with grave prognosis despite multimodal treatment. The aim of our study was to determine the incidence and mortality of ACCs in Central Serbia. Methods. The study period was from 1999 to 2012. We used data from the Cancer Registry of Central Serbia. Incidence and mortality rates were sex- and age-standardized according to Segi’s world population. Results. In the defined period of the study, 128 patients with a diagnosis of ACC were registered and the female-to-male ratio was 1.3:1. The median age of affected individuals was 42.3 years. There were two main age peaks – one in childhood (0–9 years), and the other in the fifth and sixth decade of life. In this period, the average standardized incidence rate of ACC amounted to two per million people with slightly increasing trend. The largest number of male patients with ACC (22; 39.2%) was registered in the age group of 0–9 years, while the largest number of patients in females was shown to be in the age group of 40–49 years (29; 40.3%). During the study period, there were 35 deaths registered in patients with ACC (mean age of 61.2 years). The average mortality rate of ACC was 0.3 per million people. The male-to-female ratio was 1.5:1. Most fatal outcomes were registered in the age groups of 50–59 and 60–69 years, so 91.4% of all deaths took place in the age groups 50+. Conclusion. ACC is an extremely rare tumor that occurs more often in women than in men. However, fatal outcomes occur more frequently in males. [Project of the Ministry of Education, Science and Technological Development of the Republic of Serbia, Grant no. 175042]

Objective: To investigate the incidence and identify risk factors for the occurrence of intraoperative hypertension (IOH) during surgery for primary hyperparathyroidism (pHPT). Subjects and Methods: The study included 269 patients surgically treated between January 2008 and January 2012 for pHPT. IOH was defined as an increase in systolic blood pressure ≥20% compared to baseline values which lasted for 15 min. The investigated influence were demographic characteristics, surgical risk score related to physical status (based on the American Society of Anesthesiologists [ASA] classification), comorbidities, type and duration of surgery, and duration of anesthesia on IOH occurrence. The investigated factors were obtained from the patients' medical history, anesthesia charts, and the daily practice database. Logistic regression analysis was done to determine the predictors of IOH. Results: Of the 269 patients, 153 (56.9%) had IOH. Based on the univariate analysis, age, body mass index, ASA status, duration of anesthesia, and preoperative hypertension were risk factors for the occurrence of IOH. Multivariate analysis showed that independent predictors of IOH were a history of hypertension (OR = 2.080, 95% CI: 1.102-3.925, p = 0.024) and age (OR = 0.569, 95% CI: 0.360-0.901, p = 0.016). Conclusion: In this study, a high percentage (56%) of the patients developed IOH during surgery for pHPT, which indicates that special attention should be paid to these patients, especially to the high-risk groups: older patients and those with a history of hypertension. Further, this study showed that advanced age and hypertension as a coexisting disease prior to parathyroid surgery were independent risk factors for the occurrence of IOH.

Background: To present for the first time a clinical case of a patient with giant neglected and exulcerated tall-cell papillary thyroid cancer, who was surgically treated. Methods: We report a case of a 73-year-old woman with large firm infiltrated and exulcerated anterior neck tumefaction (12 cm in diameter) clinically suspected as anaplastic thyroid cancer. Patient had a goiter for more than 20 years with rapid growth in last months, after that presented with infiltration and exulceration of the skin. Results: Fine needle aspiration biopsy (FNAB) revealed papillary thyroid cancer (PTC). Total thyroidectomy with en-block dissection of the infrahyoid muscles and skin was performed. Lymph node metastasis were not present. Pathologically, goiter and tall-cell papillary carcinoma were present without anaplastic dedifferentiation. Postoperative radioiodine therapy was done, than L-thyroxin suppressive therapy, patient refused transcutaneous radiotherapy. Serum thyroglobulin was 0.15 ng/ml. Vocal cord paralysis and hypocalcaemia were not present. In following 3 years patient did not come to postoperative control, then she came with local recurrence of disease and tracheostomy. Tumor reduction was a second operation which was performed. Pathologically, it was tall-cell papillary carcinoma with regional lymph node metastases. The skin defect was reconstructed with a local transpositional flap. Patient refused radioiodine and transcutaneous radiotherapy and died 4 years after first operation, she was 77-years old. Conclusions: Skin infiltration and exulceration are rare in papillary thyroid cancer but they can be found in patients with neglected and poorly differentiated papillary carcinomas. Exulcerated tall cell papillary carcinoma can be unpredictable even in radically performed operation.

Radio-guided surgery offers several advantages in treatment of primary hyperparathyroidism. It is considered less helpful in renal hyperparathyroidism, but it could be of great advantage in the treatment of persistent or recurrent secondary hyperparathyroidism. One of the surgical options for symptomatic renal hyperparathyroidism is total parathyroidectomy with autotransplantation of hyperplastic parathyroid tissue in forearm muscles or sternocleidomastoid muscle. Recurrence can occur and is most likely caused by graft hyperplasia. In this report we present the case of 54-year-old woman with recurrent renal hyperparathyroidism caused by hyperplasia of the graft in sternocleidomastoid muscle. Unfortunately no sutures or clips were placed at initial surgery to identify the location of the parathyroid tissue. The preoperative assessment consisting of 99mTc-sestamibi scintigraphy identified a parathyroid tissue in the in the middle third of sternocleidomastoid muscle. The patient underwent a radio-guided neck re-exploration that allowed a rapid localization and excision of the hyperplastic graft.

Background Clinically isolated adrenal metastases are rare and therefore present a therapeutic challenge. We report our experience with surgery of adrenal metastases and analyze factors that may influence postoperative survival. Methods A consecutive series of 31 patients (16 male, 15 female) underwent adrenal surgery for metastases at a single institution over 10-year period (1999-2008). The Kaplan-Meier method and log-rank test were used to determine overall survival. Potential prognostic factors were identified by univariate and multivariate Cox regression analysis. Results The primary tumor diagnoses were non-small-cell lung carcinoma (NSCLC) 20, colorectal carcinoma 5, renal cell carcinoma (RCC) 2, malignant melanoma and breast carcinoma, one each. The median survival was 12 months, with one year and five year survival of 21% and 3.4% respectively. According to multivariate analysis independent prognostic factors of favorable survival were disease free interval (DFI) longer than 12 months (Hazard ratio (HR) = 0.28, 95% CI = 0.09-0.90), potentially curative resection (Hazard ratio (HR) = 0.35, 95% CI = 0.12-1.00) and postoperative radiotherapy of adrenal bed (Hazard ratio (HR) = 0.33, 95% CI = 0.12-0.91). Conclusions Overall survival after surgery for adrenal metastases is poor. In multivariate analyses, survival is influenced by DFI, curative resection, and postoperative radiotherapy.

This article examines as to whether the Ki-67 index may be useful as a marker for cell proliferation, as well as to whether Ki-67 immunohistochemical expression and parathyroid hormone (PTH) levels are useful in distinguishing between parathyroid carcinoma (PC) and adenoma.A retrospective analysis of 50 patients (10 with PC and 40 with adenoma) who had been previously diagnosed with primary hyperparathyroidism (PHPT) was conducted. Normal parathyroid glands served as the control group. Immunostaining of Ki-67 was estimated through image analysis and the results were statistically analyzed.Ki-67 was higher in PC patients (median 785.15) compared to adenoma patients (median 297.41; Mann-Whitney U-test p0.001). ROC analysis confirmed that Ki-67 has a positive predictive marker in diagnosing cancer. Mann-Whitney U-test confirmed a highly statistically significant difference in the preoperative PTH levels between the PC and adenoma group (p0.001). The PTH serum preoperative level was higher in PC patients (median 1721) than in those with adenoma (median 189.5). A highly significant correlation was also found between Ki-67 and preoperative PTH levels (p0.001).A higher rate of cellular proliferation was noted in malignant tumors as compared to benign tumors. Moreover, the expression profile of Ki-67 and high PTH levels in this study indicates a role for them as potential markers of malignancy.

Background Graves’ disease represents an autoimmune disease of the thyroid gland where surgery has an important role in its treatment. The aim of our paper was to analyze the results of surgical treatment, the frequency of microcarcinoma and carcinoma, as well as to compare surgical complications in relation to the various types of operations performed for Graves’ disease. Methods We analysed 1432 patients (221 male and 1211 female) who underwent surgery for Graves’ disease at the Centre for Endocrine Surgery in Belgrade during 15 years (1996–2010). Average age was 34.8 years. Frequency of surgical complications within the groups was analyzed with nonparametric Fisher’s test. Results Total thyroidectomy (TT) was performed in 974 (68%) patients, and Dunhill operation (D) in 221 (15.4). Carcinoma of thyroid gland was found in 146 patients (10.2%), of which 129 (9%) were a microcarcinoma. Complication rates were higher in the TT group, where there were 31 (3.2%) patients with permanent hypoparathyroidism, 9 (0.9%) patients with unilateral recurrent nerve paralysis and 10 (1.0%) patients with postoperative bleeding. Combined complications, such as permanent hypoparathyroidism with bleeding were more common in the D group where there were 2 patients (0,9%), while unilateral recurrent nerve paralysis with bleeding was more common in the TT group where there were 3 cases (0,3%). Conclusions Frequency of complications were not significantly statistically different in relation to the type of surgical procedure. Total thyroidectomy represents a safe and efficient method for treating patients with Graves’ disease, and it is not followed by a greater frequency of complications in relation to less extensive procedures.

Anaplastic thyroid cancer (ATC) is one of the most aggressive tumors in human medicine. Despite the multimodal therapy, the average survival of patients is just several months. Fortunately, it is an extremely rare tumor. Most frequently, ATC occurs in the elderly, with the average age of the patients being almost 70 years. It is extremely rare that ATC occurs in people under the age of 40. We report a case of a 33 year old woman with ATC, with the diameter of the tumor being 8x7cm, confirmed by histopathology and imunohistochemistry. In January 2001, a total thyroidectomy was performed, and the tumor was completely resected. Postoperatively, the patient received radiation therapy. Ten years after the surgery, on regular check-ups, the patient is still living and there is no evidence of a recurrent tumor or metastases. This case is instructive for two reasons, as it shows that ATC can occur in younger people and that there is a possibility of long term survival.

The most common causes of hyperthyroidism are Graves disease (GD) and toxic nodular goiter (TNG). GD and TNG might influence patients' quality of life (QoL). The aim of our study was to analyze and compare the QoL of patients with GD with that of TNG patients and to evaluate the influence of surgical treatment on their QoL.A prospective case-control study was conducted at the Center for Endocrine surgery in Belgrade, Serbia. The ThyPRO questionnaire was used in the QoL assessment of the GD and TNG patients (31 and 28, respectively) pre- and post-operatively.All patients were receiving antithyroid drugs, and none of the patients were overtly hyperthyroid at the time of completing the preoperative questionnaire. The QoL of the GD patients was worse than that of the TNG patients, with significant differences in eye symptoms, anxiety, and sex life domains (P0.001, P = 0.005, and P = 0.004, respectively), preoperatively, and in eye symptoms, anxiety, emotional susceptibility, and overall QoL (P = 0.001, P = 0.027, P = 0.005 and P = 0.013, respectively), postoperatively. The improvement in QoL in the GD patients was significant after surgical treatment in all ThyPRO domains. In the TNG patients, the improvement was significant in all but one ThyPRO domain, sex life (P = 0.066).The QoL of GD patients is worse than those of TNG patients. Surgery may improve QoL in patients with GD and TNG even if they have achieved satisfying thyroid status with medication treatment, preoperatively.

A quality of life (QoL) assessment is considered an important outcome measure in the treatment of benign thyroid diseases. The aims of this study were to analyze the impact of different surgical treatments on QoL in patients with benign thyroid diseases and to evaluate factors correlating with the QoL outcomes. A prospective longitudinal study was conducted. One hundred thirty-two patients met the inclusion/exclusion criteria and completed the disease-specific questionnaire, thyroid patient-reported outcome (ThyPRO), before surgery and after 6 months. Preoperative and postoperative QoL outcomes were compared and correlating factors were analyzed. Indication for surgery was euthyroid goiter, toxic goiter, and suspicious malignant thyroid disease in 58.3, 29.5, and 12.1 % of the patients, respectively. None of the patients had overtly toxic goiter. There were 65.2 % of the patients who underwent total thyroidectomy, while 34.8 % underwent hemithyroidectomy. The total postoperative complication rate was 5.3 %. QoL improved significantly after surgical treatment, independent of the extent of performed surgery. The most affected domain, pre- and postoperative, was for tiredness. QoL improvement was significant for women in all domains, while for men, it was significant in only three domains (goiter symptoms, emotional susceptibility, and cosmetic complaints) and in overall QoL. Younger patients had significantly better cognitive functioning and daily life, while elderly patients had significantly less cosmetic complaints. The factors that significantly correlated with improvement of QoL in different domains were lower education level, duration of disease, and microcarcinoma at final histology. QoL in patients with benign thyroid diseases improves significantly after operative treatment, independent of the extent of the operation.

Background.Anaplastic thyroid cancer (ATC) is one of the tumors with the shortest survival in human medicine.Aim.The aim was to determine the importance of age in survival of patients with ATC.Material and Methods. We analyzed the data on 150 patients diagnosed with ATC in the period from 1995 to 2006. The Kaplan-Meier method and log-rank test were used to determine overall survival. Prognostic factors were identified by univariate and multivariate Cox regression analysis.Results.The youngest patient was 35 years old and the oldest was 89 years old. According to univariate regression analysis, age was significantly associated with longer survival in patients with ATC. In multivariate regression analysis, patients age, presence of longstanding goiter, whether surgical treatment is carried out or not, type of surgery, tumor multicentricity, presence of distant metastases, histologically proven preexistent papillary carcinoma, radioiodine therapy, and postoperative radiotherapy were included. According to multivariate analysis, besides surgery (P=0.000, OR = 0.43, 95% CI = 0.29–0.63), only patients age (P=0.023, OR = 0.68, 95% CI = 0.49–0.95) was independent prognostic factor of favorable survival in patients with ATC.Conclusion. Age is a factor that was independently associated with survival time in ATC. Anaplastic thyroid cancer has the best prognosis in patients younger than 50 years.

Thyroid carcinomas in children and adolescents are rare tumors and the most common among them is papillary thyroid cancer (PTC). Its etiology is still under research and has not been clearly defined thus far, especially in young individuals. The aim of this case-control study was to determine potential risk factors for the development of PTC in children and adolescents. This type of study has not been carried out previously in this age group. A case-control study was carried out during a 15-year period, between 1995 and 2009. The case group included 75 patients with PTC younger than 20 years of age, with the youngest patient being 6.5 years old; 45 patients were female and 30 were male. The control group included the same number of participants, and the cases were individually matched by sex, age, and place of residence. Conditional univariate and multivariate logistic regression methods were applied in data analysis. According to univariate logistic regression analysis, PTC in children and adolescents was significantly related to the following factors: family history of thyroid cancer, family history of residence in an endemic-goiter area, family history of benign thyroid disease, and family history of nonthyroid malignant tumors. According to the multivariate logistic regression method, PTC in children and adolescents was independently related to a family history of thyroid cancer (odds ratio=4.5, 95% confidence interval=1.2-19.8) and a family history of nonthyroid malignant tumors (odds ratio=3.8, 95% confidence interval=1.4-8.7). In conclusion, all of the factors associated with the development of PTC in children and adolescents were related to their family history. (C) 2013 Wolters Kluwer Health vertical bar Lippincott Williams and Wilkins.

e17060 Background: Epidemiology studies have shown that there is a strong, positive correlation between obesity and the incidence of several types of carcinoma. One of the most important mediators ...