Endocrine Abstracts

Background: While pituitary adenomas are the commonest Sella neoplasm, number of other entities should be considered in the differential diagnosis and the diagnosis is based on histopathological and immunohistochemical characteristics. Pituitary tumors with papillary architecture are uncommon and have limited differential diagnoses. Primary papillary epithelial tumor of the pituitary is a recently described histopathological entity with striking papillary architecture and TTF1...