Metachronous Granular Cell Tumor of the Descending Colon

Binav Shrestha, Mazin Khalid, Vijay Gayam, Osama Mukhtar, Shivani Thapa, Amrendra K. Mandal, Jaspreet Kaler, Mowyad Khalid, Pavani Garlapati, Shamah Iqbal, Gerald Posner


Granular cell tumors (GCTs) are uncommon tumors. They are believed to be neuronal in origin and are usually found in the head and/or neck area of the body. They have also been reported in various locations of the gastrointestinal (GI) system, usually discovered during routine screening colonoscopy. We report a case of GCT in a 58-year-old asymptomatic African American female as a metachronous tumor of a well-differentiated adenocarcinoma of the sigmoid colon, which was an incidental finding in screening colonoscopy. To our knowledge, this is the first case with GCT identified as a metachronous tumor following an adenocarcinoma of the colon.

Gastroenterol Res. 2018;11(4):317-320


Granular cell tumor; Metachronous tumor; Colorectal cancer; Colonoscopy; Surveillance

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Gastroenterology Research, bimonthly, ISSN 1918-2805 (print), 1918-2813 (online), published by Elmer Press Inc.                     
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