Esophagus Stomach Duodenum Capsule Endoscopy Inflammatory Bowel Disease Colon & Ileum Miscellaneous

Granular Cell Tumor

55 year-old man undergoing colonoscopy for evaluation of occult bleeding. In addition to several benign tubular adenomas, colonoscopy revealed this smooth polypoid lesion. On microscopic exam, the lesion contained cytologically bland cells with abundant granular cytoplasm, small regular nuclei involving musoca and apparently associated with, or arising from, the muscularis mucosa, consistent with granular cell tumor. Granular cell tumors may occur elsewhere in the GI tract, including the esophagus.

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