13 results on '"Ulzen-Appiah K"'
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2. Targeted gene panel sequencing of liquid and tissue biopsies reveals actionable genomic alterations in Ghanaian metastatic breast cancer cases.
- Author
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Amoako E, Amuzu S, Ofori EO, Akligoh HS, Tackie R, Ibrahim BA, Quaye EK, Akakpo PK, Aniakwo LA, Jimah B, Ulzen-Appiah K, Hutchful D, Manu A, Ngoi JM, Paemka L, Alhassan Y, Obeng EA, Lim N, Rajah L, Pek M, Challis J, Rahman GA, Tan MH, and Bediako Y
- Abstract
Purpose: Breast cancer is a major cause of cancer-related mortality among African women. The adoption of molecular genomic technologies in the management of cancer cases is limited in Africa. To provide much-needed insights on the feasibility and utility of such precision medicine paradigms in Africa, we conducted a prospective, non-interventional study involving combined tissue and plasma Next-generation sequencing (NGS)-based testing in cancer patients in Ghana., Methods: We recruited 20 newly diagnosed, histologically confirmed, treatment-naïve women with metastatic breast cancer at the Cape Coast Teaching Hospital in Ghana. Tissue (NGS) and cell-free DNA (cfDNA) liquid biopsy analysis were ordered on all 20 patients., Results: All 20/20 (100 %) liquid biopsy samples were acceptable for analysis, whereas only 6/20 (30 %) passed quality control for tissue NGS testing. Liquid biopsy detected 42 cfDNA mutations in 17/20 patients. Of the 17 patients, 3 (17.6 %) had mutations previously associated with African ancestry, including BRCA1 p.K719E, ARAF p.S262I and GATA3 p.G125dup. Eight potentially actionable alterations specific to breast cancer were found in 6/17 (35.3 %) liquid biopsy samples, while potentially actionable mutations non-specific to breast cancer were detected in 12/17 (70.6 %). Tissue biopsy analysis detected mutations in all 6 patients tested, with 3/6 (50 %) patients presenting potentially actionable mutations relevant to breast cancer., Conclusion: Liquid biopsy detected multiple additional actionable variants in Ghanaian women with breast cancer. Plasma cfDNA analysis featured fewer variations in sample preparation which is a key consideration in resource-limited settings. Liquid biopsy presents a great opportunity to improve cancer care in Africa., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Min-Han Tan is a director, shareholder and Chief executive officer of Lucence. Yaw Bediako is a director, shareholder and Chief executive officer of Yemaachi Biotech., (Copyright © 2024. Published by Elsevier Inc.)
- Published
- 2024
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3. The distribution of hrHPV genotypes among cervical cancer cases diagnosed across Ghana: a cross-sectional study.
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Akakpo PK, Imbeah EG, Ulzen-Appiah K, Darkwa-Abrahams A, Adjei E, Amo-Antwi K, Amo EO, Der EM, and Wiredu EK
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- Female, Humans, Middle Aged, Cross-Sectional Studies, Ghana epidemiology, Genotype, Papillomaviridae genetics, Early Detection of Cancer methods, Uterine Cervical Neoplasms diagnosis, Uterine Cervical Neoplasms epidemiology, Uterine Cervical Neoplasms pathology, Vaccines, Papillomavirus Infections diagnosis, Papillomavirus Infections epidemiology, Papillomavirus Infections complications
- Abstract
Background: The burden of cervical cancer in Ghana is high due to a lack of a national screening and vaccination program. Geographical variations in high-risk Human Papilloma Virus incidence and type should be considered for vaccine improvement and screening in LMICs., Methods: A descriptive, multi-center cross-sectional study with purposive sampling of cases with cervical cancer diagnosed from January 2012 through to December 2018 was employed relying on archived Formalin Fixed Paraffin Embedded (FFPE) tissues from four (4) Teaching Hospitals. Cervical cancers were assessed for histopathological features following WHO guidelines. In addition, the novel Tumour Budding and Nest Size Grade (TBNS) for SCC, SILVA pattern of invasion for EAC and Tumour Infiltrating Lymphocytes (TILs) were assessed. High Risk HPV testing was performed using an isothermal, multiplex nucleic acid amplification method from ATILA biosystem (Mountain View California, USA). The FFPE blocks were tested for 15 hrHPV genotypes. Results were analyzed using SPSS v.26.0, with descriptive statistics and cross-tabulation and chi-square tests done with significance established at p < 0.05., Results: A total of 297 cases were identified for the study with ages ranging from 20 to 95 years. The peak age group for cervical cancer was 46 to 55 years. For those tested, hrHPV positivity rate was 85.4% [EAC (84.6%) and SCC (85.6%)]. The top five hrHPV serotypes for both histological cancers were 59 (40.0%), 35 (32.0%), 18 (30.0%), 16 (15.0%), and 33 (10.0%) respectively. Approximately, 58.2% of infections were multiple. Single hrHPV infections were mostly caused by hrHPV 59 (28.9%), and 16 (26.3%). TBNS grade for SCC, SILVA pattern of invasion for EAC and TILs did not show any statistically significant relationship with hrHPV., Conclusion: We affirm reported differences in hrHPV types associated with cervical cancer in Ghana with hrHPV types such as 59, 35, and 33 forming a significant proportion of hrHPV types associated with cervical cancer. This difference in hrHPV types should guide vaccine improvement and triaging of hrHPV positives. Though multiple infections are more common, some hrHPV types such as hrHPV 16 and 59 are responsible for most single infections associated with cervical cancer. Simple haematoxylin and eosin-based morphological assessments can improve the prognostication of patients with cervical cancer., (© 2024. The Author(s).)
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- 2024
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4. Central Neurocytoma in a Teenager, a Rare Cause of Hemiplegia, and a Diagnostic Dilemma in a Resource-Poor Setting.
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Ulzen-Appiah K and Akakpo KP
- Abstract
Background: Central neurocytoma is a benign intraventricular neuroectodermal tumor most often arising in the lateral ventricles. Due to the location of this tumor, common signs and symptoms include obstructive hydrocephalus, recurrent headache, visual impairment, nausea, and vomiting. Central neurocytoma and intraventricular oligodendroglioma share similar gross features and cellular and architectural morphology, which may pose a diagnostic challenge in a poor resource setting. Immunohistochemical neuronal stains are useful for the two tumors in our setting. Report . An 18-year-old male patient presented with a 1-year history of right-sided weakness, recurrent seizures, and sudden loss of consciousness. The patient showed signs of increased intracranial pressure, but an antemortem CT or MRI scan could not be done to determine the underlying cause, due to lack of availability and poor prognosis of the patient at the time of presentation. An autopsy revealed a well-demarcated solid cystic, gritty intraventricular tumor causing obstructive hydrocephalus, with associated dilated ventricles and severe cerebral edema. Postmortem histopathological examination of the tumor confirmed central neurocytoma., Conclusion: Central neurocytoma (CN) is an uncommon cause of intracranial space occupying lesion (ICSOL) in the teenage age group in our setting. Central neurocytoma and intraventricular oligodendroglioma share similar radiologic and histomorphological features. Immunohistochemical evaluation with neuronal markers is essential in these two tumors, as they have different prognoses and surgical and treatment outcomes., Competing Interests: The authors declare that they have no conflicts of interest., (Copyright © 2024 Kofi Ulzen-Appiah and Kafui P. Akakpo.)
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- 2024
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5. Radiologic patterns of distant organ metastasis in advanced breast cancer patients: Prospective review of computed tomography images.
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Jimah BB, Amoako E, Ofori EO, Akakpo PK, Aniakwo LA, Ulzen-Appiah K, Imbeah EG, Morna MT, Koggoh P, Akligoh H, Tackie R, Manu A, Paemka L, Sarkodie BD, Offei AK, Hutchful D, Ngoi J, Bediako Y, and Rahman GA
- Subjects
- Female, Humans, Prospective Studies, Tomography, X-Ray Computed, Lymph Nodes pathology, Breast Neoplasms diagnostic imaging, Breast Neoplasms pathology, Bone Neoplasms diagnostic imaging, Bone Neoplasms pathology
- Abstract
Background: Breast cancer (BC) metastases to the abdomen and pelvis affect the liver, mesentery, retroperitoneum, peritoneum, bladder, kidney, ovary, and uterus. The study documented the radiological pattern and features of the chest, bone, abdominal and pelvic (AP) metastases among advanced BC patients., Aim: The aim is to document the radiological pattern and features of breast cancer metastasis in the chest, abdomen, pelvis and bones., Materials and Results: Chest, abdominal, and pelvic computed tomography scan images of 36 patients with advanced BC were collated from Cape Coast Teaching Hospital and RAAJ Diagnostics. The images were prospectively assessed for metastasis to the organs of the chest, AP soft tissues, and bones. Radiologic features of metastasis of the lungs, liver, lymph nodes (LNs), and bones were documented. Patients' demographics, clinical data, and histopathology reports were also collected. The data were captured using UVOSYO and exported to Microsoft Excel templates. The data obtained were descriptively analyzed. Only 2.8% of BCs exhibited metaplastic BC, whereas 97.2% had invasive ductal BC. Triple-negative cases were 55.6%. Of 36 patients, 31 (86.1%), 21 (58.3%), and 14(38.8%) were diagnosed of chest, AP, and bone tissues metastasis, respectively. LN involvement was reported in 26 (72.2%) patients. Majority, 21 (58.3%) were diagnosed of multiple sites metastasis with 15 (41.7%) showing single site. Lungs (77.4%, 24/31) and liver (47.6%, 10/21) were the most affected distant organs. Most bone metastases were lytic lesions (92.9%, 13/14) with the vertebrae (85.7%, 12/14) been the most affected., Conclusion: According to the study, advanced BC patients have a higher-than-average radiologic incidence of lung, liver, bone, and LN metastases., (© 2024 The Authors. Cancer Reports published by Wiley Periodicals LLC.)
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- 2024
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6. Exertional Dyspnea Incidentally Diagnosed as Sarcoidosis: A Teaching Hospital Experience.
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Nartey M and Ulzen-Appiah K
- Abstract
Background: Sarcoidosis is a complex disease with nonspecific etiology and clinical presentation. Its diagnosis is often delayed due to the absence of a single specific investigation modality. A multidisciplinary approach is necessary for its diagnosis. Report . A 49-year-old male presented with recurrent dyspnea on exertion, easy fatigue, and chest pain after several visits to different health facilities over 5 months. A diagnosis of pulmonary sarcoidosis was made after a series of laboratory and imaging investigations were done revealing bilateral reticonodular opacifications, noncaseating granulomata, elevated serum ACE and calcium levels consistent with sarcoidosis., Conclusion: Sarcoidosis, although a rare presentation in our setting, may easily be overlooked or misdiagnosed if a holistic or multidisciplinary approach is not employed in its diagnosis. Nonspecificity of symptoms contributes to the delayed diagnosis., Competing Interests: The authors declare that they have no conflicts of interest., (Copyright © 2023 Melvina Nartey and Kofi Ulzen-Appiah.)
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- 2023
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7. Clinicopathologic characteristics of early-onset breast cancer: a comparative analysis of cases from across Ghana.
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Akakpo PK, Imbeah EG, Edusei L, Naporo S, Ulzen-Appiah K, Clegg-Lamptey JN, Dedey F, Nsaful J, Affram N, Wiafe B, Mensah S, Nortey M, Sheriff M, Amponsah-Manu F, Agbedinu K, and Jiagge EM
- Subjects
- Humans, Female, Retrospective Studies, Ghana epidemiology, Cross-Sectional Studies, Mastectomy, Axilla pathology, Breast Neoplasms, Triple Negative Breast Neoplasms
- Abstract
Background: Breast cancer is the commonest cancer diagnosed globally and the second leading cause of cancer-related mortality among women younger than 40 years. This study comparatively reviewed the demographic, pathologic and molecular features of Early-Onset Breast Cancer (EOBC) reported in Ghana in relation to Late Onset Breast Cancer (LOBC)., Methods: A descriptive, cross-sectional design was used, with purposive sampling of retrospective histopathology data from 2019 to 2021. Reports of core or incision biopsy, Wide Local Excision or Mastectomy with or without axillary lymph node dissection specimen and matched immunohistochemistry reports were merged into a single file and analysed with SPSS v. 20.0. Descriptive statistics of frequencies and percentages were used to describe categorical variables. Cross-tabulation and chi-square test was done at a 95% confidence interval with significance established at p < 0.05., Results: A total of 2418 cases were included in the study with 20.2% (488 cases) being EOBCs and 79.8% (1930 cases) being LOBCs. The median age at diagnosis was 34.66 (IQR: 5.55) in the EOBC group (< 40 years) and 54.29 (IQR: 16.86) in the LOBC group (≥ 40 years). Invasive carcinoma-No Special Type was the commonest tumour type with grade III tumours being the commonest in both categories of patients. Perineural invasion was the only statistically significant pathologic parameter with age. EOBC was associated with higher DCIS component (24.8% vs 21.6%), lower hormone-receptor-positive status (52.30% vs 55.70%), higher proliferation index (Ki-67 > 20: 82.40% vs 80.30%) and a higher number of involved lymph nodes (13.80% vs 9.00%). Triple-Negative Breast cancer (26.40% vs 24.30%) was the most predominant molecular subtype of EOBC., Conclusion: EOBCs in our setting are generally more aggressive with poorer prognostic histopathological and molecular features when compared with LOBCs. A larger study is recommended to identify the association between relevant pathological features and early onset breast cancer in Ghana. Again, further molecular and genetic studies to understand the molecular genetic drivers of the general poorer pathological features of EOBCs and its relation to patient outcome in our setting is needed., (© 2022. The Author(s).)
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- 2023
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8. A Report of Rosai-Dorfman Disease in an Adolescent.
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Amoako E, Danso KA, Akuaku RS, and Ulzen-Appiah K
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Rosai-Dorfman disease (RDD) is a rare disease of unknown cause. It is a benign self-limiting condition characterized by the accumulation of activated histiocytes in the sinusoids of lymph nodes and/or extranodal tissues. Massive cervical lymphadenopathy as the initial manifestation tends to raise the initial odds in favour of a lymphoma, and thus reducing the threshold to performing a simple biopsy cannot be overestimated. Herein, we report a 13-year-old adolescent who presented with a progressive posterior left-sided neck swelling. Our diagnosis of RDD was established by demonstrating emperipolesis in histology and S100 positivity in immunohistochemistry as stated in the literature. Although the condition is known to be self-limiting, evidence from the literature and our case management shows that medical therapy can hasten remission in pediatric cases., Competing Interests: The authors declare that they have no conflicts of interest., (Copyright © 2022 Emmanuella Amoako et al.)
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- 2022
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9. Pilomatricoma in the neck of an adult male.
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Ulzen-Appiah K
- Abstract
Competing Interests: Conflict of interest: None.
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- 2022
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10. Embryonal tumor with multilayered rosettes in a teenager.
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Ulzen-Appiah K and Akakpo KP
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Background: Embryonal tumor with multilayered rosettes (ETMR), NOS/C19MC- altered, is a rare and recently classified highly aggressive malignant brain tumor in the 2021 World Health Organization (WHO) classification of tumors of the central nervous system 5
th edition. They are mostly diagnosed in children before the age of three years. Most of them are located in the supratentorial region. Prior to the reclassification of ETMR as a single entity, three distinct tumors, namely, embryonal tumor with abundant neuropil and true rosettes (ETANTR), ependymoblastoma (EBL) and medulloepithelioma (MEPL) were recognized. Recent studies showed that all the three entities have multilayered rosettes on morphology, sharing a common amplification of the C19MC locus at the chromosome 19q13.42 by fluorescence in situ hybridization, and highly specific immunohistochemical staining for LIN28A rendered their reclassification as a single entity., Report: A 13-year-old girl was rushed to the emergency room unconscious, with no return of spontaneous circulation after cardiopulmonary resuscitation. Autopsy revealed a left cerebellar hemisphere hemorrhagic tumor which histopathological examination revealed a multilayered ependymoblastic rosettes with abundant neuropil. The multilayered rosettes showed reactivity for vimentin but non-reactivity for pan-cytokeratin, the zones with abundant neuropil were reactive for synaptophysin consistent with a diagnosis of embryonal tumor with abundant neuropil and true rosettes now ETMR, NOS (WHO Grade 4) due to the lack of genetic testing for amplification of C19MC., Conclusion: ETMR is a highly aggressive CNS embryonal tumor with extremely poor prognosis. It should be considered in the differential diagnosis of pediatric brain tumors. Multilayered rosettes are a useful clue to histologic diagnosis., Competing Interests: Conflict of interest: None, (Copyright © 2022 The Author(s).)- Published
- 2022
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11. A case report of a teenager with hepatitis B surface antigen-positive multifocal hepatocellular carcinoma in a noncirrhotic liver.
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Danso KA, Akuaku RS, Taylor RR, Amoako E, Ulzen-Appiah K, Jimah BB, and Tagoe LG
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Hepatitis B virus is a known carcinogen for hepatocellular carcinoma, which is rare in the pediatric population. We report a 13-year-old patient with hepatitis B surface antigen-positive multifocal hepatocellular carcinoma in a noncirrhotic liver. Her APRI score was 0.24. Her BCLC stage was C, and her caregiver opted for palliative care., Competing Interests: The authors declare no competing interest., (© 2022 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.)
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- 2022
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12. Prenatal Diagnosis of Skeletal Dysplasia and Review of the Literature.
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Jimah BB, Mensah TA, Ulzen-Appiah K, Sarkodie BD, Anim DA, Amoako E, and Gyamfi EA
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Introduction: Obstetric ultrasonography is routinely used to screen for fetal anomalies. Thanatophoric dysplasia (TD) is one of the common though rare lethal skeletal dysplasia, detected during routine ultrasound scan. TD is caused by a mutation in FGFR3 gene. Characteristic features include shortening of limbs, macrocephaly and platyspondyly. In our local setting, it is common to miss the diagnosis in the early scans due to lack of expertise of the sonographers. To the best of our knowledge, this is the first publication from Ghana. Case Presentation . We present the case of a 33-year-old woman who was referred to the facility on account of ultrasound scan report suggestive of thanatophoric dysplasia type 1 at 34 weeks of a female baby. The diagnosis was not made despite the mother being a regular antenatal attendant, until a fifth scan done at 34 weeks reported features suggestive of thanatophoric dysplasia. The ultrasound scan features included a biparietal diameter of 37weeks, femur length-24weeks, narrowed thoracic cage with hypoplastic lungs and short ribs. The liquor volume was increased with amniotic fluid index (AFI) of 38.4 cm. The femur, tibia, fibula, humerus, ulna, and radius were shortened (micromelia). The diagnosis of thanatophoric dysplasia type 1 was confirmed on autopsy., Conclusion: This report was aimed to highlight the potential contribution of ultrasound scan in the diagnosis of thanatophoric dysplasia in our setting., Competing Interests: The authors declare that they have no competing interests., (Copyright © 2021 Bashiru Babatunde Jimah et al.)
- Published
- 2021
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13. Diagnosing and treating rare lesions in a low resource setting: lessons from ahybrid epithelioid trophoblastic tumor and choriocarcinoma.
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Akakpo PK, Ulzen-Appiah K, Agbeno E, and Derkyi-Kwarteng L
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- Adult, Choriocarcinoma pathology, Choriocarcinoma therapy, Diagnosis, Differential, Drug Therapy, Female, Humans, Hysterectomy, Immunohistochemistry, Pregnancy, Trophoblastic Neoplasms pathology, Trophoblastic Neoplasms therapy, Uterine Hemorrhage etiology, Uterine Neoplasms pathology, Uterine Neoplasms therapy, Choriocarcinoma diagnosis, Chorionic Gonadotropin, beta Subunit, Human blood, Trophoblastic Neoplasms diagnosis, Uterine Neoplasms diagnosis
- Abstract
Objective: To raise awareness of the existence of a rare type of malignant trophoblastic tumor and discuss the diagnostic challenges and management of this lesion in a low resource setting., Case Report and Intervention: A 35 -year -old G
6 P3 woman was referred to our facility on account of persistent vaginal bleeding due to a suspected incomplete miscarriage with a cervical mass. Her serum β-HCG was elevated (36,900 mIU/ml) and examination showed a bleeding cervical mass. An initial histopathological diagnosis of moderately differentiated squamous cell carcinoma was reviewed to epithelioid trophoblastic tumor resulting in an extra-fascial hysterectomy. A final histopathological diagnosis of hybrid Epithelioid Trophoblastic Tumor and Choriocarcinoma (ETT/CC) was made after external review and immunohistochemistry. She received subsequent chemotherapy., Conclusion: Epithelioid trophoblastic tumor and its hybrids are difficult to diagnose. They may be diagnosed as moderately differentiated squamous cell carcinoma especially in low resource settings where cervical squamous cell carcinoma is relatively more common. A high index of suspicion, a serum β HCG test and close collaboration between clinicians and pathologists can help make the diagnosis., Funding: None., Competing Interests: Conflict of interest: None declared- Published
- 2017
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