Journal of Yeungnam Medical Science

Case Report

Solitary schwannoma of the ascending colon.: Myeong Su Chu, Hyun Mo Kang, Hyeong Ju Sun, Dong Min Kim, Hyong Jong Kwak; Yeungnam Univ J Med. 2016;33(1):37-39. Published online June 30, 2016; DOI: https://doi.org/10.12701/yujm.2016.33.1.37

Abstract PDF: Schwannomas are uncommon neoplasms arising from Schwann cells of the neural sheath. Gastrointestinal schwannomas are rare, accounting for 1% of all malignant gastrointestinal tumors. Colonoscopic biopsy with immunohistochemical (IHC) staining is useful for confirming this tumor. We report on a patient with schwannoma arising from the ascending colon, which was detected by colonoscopy and endoscopic submucosal dissection was attempted. A 41-year-old man presented with abdominal discomfort. The patient was diagnosed with a subepithelial tumor on colonoscopy. He underwent endoscopic submucosal dissection. Histopathology and IHC staining confirmed that the colonic lesion was a benign schwannoma. However, the resection margin was positive. Therefore, laparoscopic ileocolectomy was performed.

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