Publications by authors named "James J Yahaya"

gene dysfunction seen in epithelial ovarian carcinomas often results from germline mutations, somatic mutations, and promoter methylation. Identification of tumors with loss of protein expression has shown to have therapeutic and prognostic implications. The aim of this study was to determine the expression of protein in epithelial ovarian cancer (EOC) and the associated clinicopathological characteristics.

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Objectives: Ameloblastoma, comprising approximately 11% of all odontogenic tumors, is a locally aggressive tumor with a high recurrence rate. This study aimed to assess the immunohistochemical expression of Ki-67 and p53 and their association with clinical and pathological factors among patients with ameloblastoma.

Methods: Retrospective follow-up data of patients histologically confirmed with ameloblastoma at Makerere College of Health Sciences in Kampala, Uganda from January 2012 to December 2018 were retrieved.

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Breast cancer (BC) screening plays a major role in the prevention of BC through early detection and timely treatment. This study aims to determine the level of uptake of BC screening and associated factors. A community-based analytical cross-sectional study was conducted in Dodoma City, Tanzania from July to December 2020.

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Background: Patients with sickle cell disease (SCD) are prone to iron profile derangements. This study aimed to determine the prevalence of iron deficiency anaemia (IDA) and their predictors among children with SCD aged between 6 months and 14 years. Assessment of the prevalence of IDA and its predictors helps to understand ways of alleviating the magnitude of the problem so as to prevent possible complications such as shortness of breath and chest pain.

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Microvascular complications encompass a group of diseases which result from long-standing chronic effect of diabetes mellitus (DM). We aimed to determine the prevalence of microvascular complications and associated risk factors among patients with type 2 diabetes mellitus (T2DM). A cross-sectional analytical hospital-based study was conducted at Singida and Dodoma regional referral hospitals in Tanzania from December 2021 to September 2022.

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Objectives: Adequate haemodialysis helps maintain normal renal function by removing toxins and other waste products in patients with end-stage kidney disease. This study was aimed at determining the prevalence and predictors of adequacy of haemodialysis and outcomes in patients with end-stage kidney disease.

Methods: This longitudinal analytical hospital-based study was conducted at two dialysis centres in Dodoma city, Tanzania, between February and July of 2020.

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Improvement of primary care for patients with type 2 diabetes mellitus (T2DM) through the promotion of good knowledge, attitude, and practice is of paramount importance for preventing its related complications. This study aimed to assess the levels of knowledge, attitude, and practice and associated factors among patients with T2DM. This was a cross-sectional multicenter hospital-based study that included 979 patients from 8 health facilities in Tanzania.

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Introduction And Importance: Aneurysmal bone cysts (ABCs) are benign, non-neoplastic cystic lesions composed of multiple blood-filled cavities, which are separated by connective tissue septa and they constitute ~6 and 1.5% of all cases of the skull and jaws lesions, respectively.

Case Presentation: Herein, the case of an 80-year-old male with a histologically confirmed diagnosis of ABC involving the body of the left mandible was presented.

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Objective: Immunohistochemical expression of P53 protein is so closely related to status of mutation of P53 gene which is tightly linked with pathogenesis of nephroblastoma or Wilms tumor. This study aims to determine the immunohistochemical expression of P53 protein and its predictors in formalin-fixed paraffin-embedded tissue blocks of patients with nephroblastoma.

Materials And Methods: A series of 83 histologically diagnosed cases of nephroblastoma from formalin-fixed paraffin-embedded tissue blocks archived at the Department of Pathology, Makerere University, in Kampala, Uganda, were analyzed.

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Glycemic control is of paramount importance in care and management for patients with type 2 diabetes mellitus (T2DM). Poor glycemic control is a major health problem that greatly contributes to the development of diabetes related complications. This study aims to assess the prevalence of poor glycemic control and associated factors among outpatients with T2DM attending diabetes clinic at Amana Regional Referral Hospital in Dar-es-salaam, Tanzania from December 2021 to September 2022.

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Background: Low medication adherence among patients with type 2 diabetes mellitus (T2DM) is associated with significant morbidity and mortality globally. We investigated the prevalence of low medication adherence and its associated factors among patients with T2DM.

Methods: We used the Bengali version of the 8-item Morisky Medication Adherence Scale (MMAS-8) in measuring medication adherence among patients with T2DM who were attending the diabetes clinic at Amana Regional Referral Hospital in Dar es Salaam, Tanzania, from December 2021 to May 2022.

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Unlabelled: Extrapelvic endometriosis is quite rare, with a reported prevalence ranging between 0.5 and 1%, and the condition is more likely to pose diagnostic challenges. This condition is more likely to pose clinical diagnostic challenges as it may mimic metastasis such as Sister Mary Joseph's nodule.

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Introduction And Importance: Male breast cancers despite being similar to female breast cancers in various aspects; however, they have important distinctive characteristics such as molecular biology, increased tendency for axillary lymph node metastasis and late age at presentation.

Presentation Of Case: We present the case of a 73-year old indigenous African male who had a 3-year history of right breast swelling which was associated with episodes of pain and tenderness. The assigned clinical stage for the patient was T2aNoMo.

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Introduction: and importance: Ruptured esophageal varices are fatal and cause haemorrhagic shock and consequently death if no immediate intervention is instituted to arrest bleeding. The role of forensic pathologists in investigating cases of sudden unexpected deaths is of paramount importance. Upon medico-legal work ups by forensic pathologists, autopsy would shed light to the exact cause of death as to whether it is natural or unnatural.

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We present the case of a 23-year-old female with multiple diffuse and nodular masses of different sizes involving predominantly the posterior wall of the uterus, omentum, and peritoneum which were histopathologically confirmed to be disseminated peritoneal leiomyomatosis. Meticulous investigation and accurate diagnosis are of utmost importance for the establishment of the correct diagnosis. Additionally, proper management of the patient while considering choice of the patients including close follow-up of the patients is mandatory for the reason of ensuring early detection of recurrence.

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Objectives: This study aims to determine the histopathological patterns and biological characteristics of ameloblastoma.

Methods: This was a cross-sectional retrospective laboratory-based study using 82 formalin-fixed paraffin-embedded tissue blocks from patients diagnosed histologically with ameloblastoma. Information regarding age, sex, anatomical location of the lesion, histopathologic type, and biological behaviour or characteristics of the types of ameloblastoma was obtained from laboratory request forms.

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Background And Study Aim: Immunohistochemistry is one of the superior methods and is regarded as the gold standard for the detection of Helicobacter pylori. We aimed to detect the presence of Helicobacter pylori in gastric biopsies among patients at the Muhimbili National Hospital from January 2012 to December 2016. Also, we determined the predictors of Helicobacter pylori infection.

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We present the case of a 64-year-old male with a 3-month history of a mass involving the distal portion of the fifth finger on the left hand which was histologically confirmed as digital papillary adenocarcinoma. Although the tumor is low grade, the chances of recurrence and metastasis are high.

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Background: Meningiomas that are progesterone receptor positive have a low recurrence rate and good prognosis compared to those that are progesterone receptor negative. This study aimed to determine the prevalence of expression of progesterone in meningiomas and its association with clinicopathological characteristics.

Materials And Methods: This was a cross-sectional laboratory-based study that was conducted at Muhimbili National Hospital.

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Objective: This study aimed to determine the prevalence of modes of delivery and associated maternal and newborn outcomes among singleton primigravidae in the Iringa region of Tanzania.

Methods: A cross-sectional, analytical hospital-based study was conducted in the Iringa region among 356 singleton primigravidae between April and August 2018. Convenience sampling and consecutive collection of data using a face-to-face interviewer-administered questionnaire was done.

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Lymphoma of bone is a rare neoplasm composed of malignant lymphoid cells, producing a tumefactive lesion within bone. We report a 13-year-old male who presented with progressively increasing swellings at the right shoulder and right mid-thigh for one month. Radiological images revealed lytic destructive lesions associated with soft tissue masses in both sites and a pathological fracture on the right humerus.

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Background: Blood transfusion saves many people every year that would otherwise have died. The present study aimed to provide an update and insightful information regarding prevalence of the common Transfusion-Transmitted Infections (TTIs) and associated factors among blood donors in Tanzania.

Methods: This was a cross-sectional study involving retrospectively collected data of blood donors from the Tanzania Northern Zone Blood Transfusion Center between 2017 and 2019.

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Background: The importance of this paper is to help to emphasize the importance of chemotherapy for children with pure intratesticular rhabdomyosarcoma after radical inguinal orchiectomy is done as first treatment of rhabdomyosarcoma. The information provided in this paper about the follow-up outcomes of the patient described in this paper, it highlights that, recurrence and even metastasis of intratesticular rhabdomyosarcoma in children are more likely to occur if surgery it not combined with chemotherapy.

Case Presentation: Herein, we present a 6-year old African male child with a 3 months history of a painless right intratesticular tumour.

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Introduction: Renal cell carcinoma (RCC) accounts for less than 0.3% of all tumours occurring in children and adolescents and it also affects 2.6% of all renal tumours for the pediatriac population.

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Background: The expression of estrogen and progesterone receptors (ER and PR) and human epidermal growth factor receptor-2 (HER2) has been reported to have an invaluable prognostic role. The aim of this study was to determine the expression of ER, PR and HER2 in women with breast cancer (BC) in Kampala, Uganda.

Methods: Expression of ER, PR and HER2 was determined immunohistochemically.

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