Primary hepatic carcinoid tumor: A case report

A case of primary hepatic carcinoid tumor is reported. A 57-year-old woman had no endocrine symptoms. Light microscopic findings revealed tumorcells f orming trabecular or insular structures and demonstrating diffuse positive staining by the Grimelius method. Mucin stained with Periodic acid-Schiff ( PAS) and alcian-blue was partially present in the tumor cells. Immunohistoc hemically, most tumor cells stained positive with chromogranin A and cytoke ratin stains. Intensive and careful investigation before and after the oper ation revealed no other origin of the tumor. We present this rare case, des cribe the clinical features of hepatic carcinoid, and discuss its diagnosis .