background: gastric and colorectal adenocarcinoma are the second and the fifth most common cancers in iran, respectively. expression of cytokeratin 7 (ck7) is established in most malignancies including gastric and colorectal adenocarcinoma. demonstration of ck7 could be related to prognostic factors and help to the better management of the patients. the objective of our study was to evaluate th...

background and objective: nasal polyp is the most common benign mass of the nasal cavity and it is originated from nasal cavity or sinuses. cytokeratins (ck) are intermediate filament proteins that provide mechanical support in epithelial cells. the purpose of this study was to compare the expression of cytokeratin 7 in epithelium of nasal polyps and nasal mucosa in chronic rhinosinusitis. mate...

In humans and canines, the morphology of granulosa cell tumors is extremely variable and causes diagnostic difficulties. In human pathology, immunohistochemistry has been widely used for the diagnosis of granulosa cell tumors, whereas, limited studies are present in canine species. The aim of this study was to investigate the expression of cytokeratins, vimentin, and inhibin-alpha in canine nor...

Metastatic adenocarcinoma to the liver from an unidentified primary tumor site is a common diagnostic problem. The present study included 41 cases of histologically diagnosed liver biopsies including hepatocellular carcinoma, cholangiocarcinoma and metastatic carcinoma in the liver. All cases were stained immunohistochemically with Cytokeratin 18, 7, and 20, Carbohydrate Antigen 19-9 and Alpha-...