Granular Cell Tumor of the Colon Presenting as Profound Weight Loss

Granular cell tumors (GCTs) are typically benign tumors of neuronal origin that stain positive for S-100. They traditionally occur in the skin and subcutaneous tissue with gastrointestinal tumor sites, such as the colon, being rare. On colonoscopy, they appear as a well-circumscribed, yellow, submuc...

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Bibliographic Details
Main Authors: Sarah E. Diaz, Jon M. Hain, Sarah D. Hans
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2020-01-01
Series:World Journal of Colorectal Surgery
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Online Access:https://journals.lww.com/10.4103/WJCS.WJCS_14_19
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Summary:Granular cell tumors (GCTs) are typically benign tumors of neuronal origin that stain positive for S-100. They traditionally occur in the skin and subcutaneous tissue with gastrointestinal tumor sites, such as the colon, being rare. On colonoscopy, they appear as a well-circumscribed, yellow, submucosal lesion. Biopsy prior to endoscopic or surgical removal can be inconclusive due to the submucosal nature of the lesion. Although GCTs are rarely malignant, they can metastasize with a high mortality rate. Endoscopic resection has been described as an appropriate treatment for tumors up to 5 cm in diameter. We present the case of a 19-year-old male who experienced a 60-pound weight loss, which was initially attributed to depression. On clinical examination, a GCT was found in his ascending colon.
ISSN:1941-8213