A Granular Cell Tumor of the Rectum: A Case Report and Review of the Literature.
- Author:
Seung Yoon YANG
1
;
Byung Soh MIN
;
Woo Ram KIM
Author Information
- Publication Type:Case Report
- Keywords: Granular cell tumor; Colon and rectum; Gastrointestinal tract
- MeSH: Colon; Colonoscopy; Gastrointestinal Tract; Granular Cell Tumor*; Humans; Mass Screening; Middle Aged; Pathology; Postoperative Complications; Rectum*; Risk Factors
- From:Annals of Coloproctology 2017;33(6):245-248
- CountryRepublic of Korea
- Language:English
- Abstract: A granular cell tumor (GCT) is an uncommon mesenchymal lesion that rarely occurs in the colon and the rectum. We describe the case of 51-year-old man with a 2-cm-sized rectal GCT 10 cm above the anal verge that was incidentally detected after a screening colonoscopy. Preoperative radiologic studies demonstrated a suspicious submucosal rectal mass with mesorectal fat infiltration, but without circumferential resection margin threatening, extramural vessel invasion, and regional lymph-node enlargement. The tumor was resected by using a transanal endoscopic operation (TEO) without immediate postoperative complications. The final pathology revealed that the tumor consisted of a GCT that had invaded the subserosa with clear margins. It had no other risk factors for malignancy according to Fanburg-Smith criteria. We systematically reviewed the English literature by using PubMed and Google Scholar. This report may be the first documented case in the literature to describe a TEO for a GCT that had invaded the subserosa in the rectum.
