Oncocytic and oncocytoid tumors of the exocrine pancreas, liver, and gastrointestinal tract

Tumors having typical oncocytic features very rarely affect the gastrointes tinal (GI) tract, liver, and pancreas, although several tumors with promine nt "pink" (eosinophilic) cytoplasm are recognizable in the digestive tract. From a practical point of view, interest in the former lesions is limited to the differential diagnosis of a primary neoplasm versus metastatic depos its of malignant oncocytic tumors from other sites. This article briefly re views the diagnostic features and clinical significance of the currently kn own tumors of the alimentary tract displaying a prominent oxyphilic charact er. Copyright (C) 1999 by W.B. Saunders Company.