Endoscopic ultrasound-guided fine needle aspiration of pancreatic neuroendocrine tumours with rapid on-site evaluation: single center experience.

Introduction: Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is a highly sensitive and accurate method for identifying pancreatic neuroendocrine tumors (PanNETs). However, research on grading and assessing the Ki67 proliferation index in FNA samples is limited.

Methods: This study analyzed 335 EUS-FNA cases performed between 2016 and 2022, of which 12 cases of PanNET were further evaluated.

Perivascular Invasion: A Promising Prognostic Parameter for Breast Cancer.

Objective: Angiotropism/perivascular invasion (PVI) is an emerging topic in various types of cancer, with studies primarily focusing on melanoma. However, limited data are available on the significance of PVI in breast cancer. This study aimed to assess the prognostic significance of PVI in breast cancer and its correlation with traditional clinicopathological prognostic parameters.

Olıgosarcoma: A Rare Case Report Wıth Dıstınct Features.

Oligosarcoma is a recently identified entity characterized by sarcomatous changes originating from oligodendroglioma. As of our current understanding, sarcomatous components are infrequent in glial tumors. The World Health Organization (WHO) classification describes sarcomatous features as a rare pattern in grade 3 oligodendrogliomas.

Evaluation of histopathological findings in very old people (≥ 80 years old) in Turkish population.

Background: The lesions observed in very old populations exhibit a wide spectrum of characteristics. Histopathological evaluation may be necessary for accurate diagnosis in this demographic. There is limited amount of data on the histopathological evaluation of lesions in very old patients.

The Journey of Material From Clinic to Pathology Laboratory: How Much Do Clinical Residents Know About This Process?

Pathology plays a major role in the management of patients. Specimen delivery to a pathology laboratory is the first step in the process. Sending materials to the pathology laboratory should be included as part of residency training.

A Rare Tumor in Adulthood: Extrapancreatic Pancreatoblastoma.

Pancreatoblastoma is a rare malignant epithelial neoplasm of the pancreas. It primarily occurs in the pediatric population and is extremely uncommon in adults. A 64-year-old male patient with no known systemic disease presented to our clinic with abdominal pain and dyspeptic complaints.

Skin Lesions in Children: Evaluation of Clinicopathological Findings.

Objective: Pediatric skin diseases may show various manifestations, occasionally affecting the patients' quality of life. Histopathological examination may be required for the diagnosis. The aim of this study was to evaluate the spectrum of clinicopathological features in pediatric skin lesions.

Immunohistochemical Evaluation of BAP1 Expression in Breast Cancer with Known and Mutations and Comparison with Histopathological Features.

-mutated breast cancers have specific pathological characteristics. is a tumor suppressor gene that is important in many cancers with different pathways. The relationship between mutation and BAP1 immunohistochemical staining is still unclear.

Molecular and immunohistochemical evaluation of BAP-1 antibody in bladder cancer and comparison with luminal-basal subtyping.

Aim: Molecular subtyping has become increasingly important in bladder cancer, and it is mainly divided into "luminal" and "basal" types. Despite the large amount of studies about the molecular pathway of bladder cancer, there are few studies about BAP-1. The aim of this study is to evaluate the BAP-1 expression molecularly and immunohistochemically and compare it with GATA-3 and CK5/6 immunohistochemical stains.

Prevalence of among children in a training and research hospital clinic in Istanbul and comparison with Updated Sydney Classification Criteria.

Objective: () is a gram-negative bacterium and one of the reasons for gastritis, peptic and duodenal ulcers. It is a crucial public health problem for both children and adults, especially in developing countries. This study aims to investigate the prevalence of positivity in children and to compare with updated Sydney classification criteria.

Epithelial-myoepithelial carcinoma on lower lip and microinvasive verrucous carcinoma in vocal cord: Case report.

Epithelial-myoepithelial carcinoma is a biphasic low-grade malignant tumor, which represents approximately 1% of all salivary gland tumors. This tumor occurs mostly in the parotid gland, followed by submandibular gland and minor salivary glands. Women, mostly fifth to the eighth decade of life, are commonly affected.