Incidental Intestinal Schwannoma in a Patient of Ulcerative Colitis With Adhesive Intestinal Obstruction: A Case Report.

Gastrointestinal (GI) schwannomas are very rare. Among GI schwannoma, the most common site is the stomach. Very few cases of intestinal schwannoma have been reported in the literature. Moreover, intestinal schwannoma in the setting of inflammatory bowel disease has rarely been reported. We report a case of ileal schwannoma incidentally detected in a 52-year-old lady with long-lasting ulcerative colitis having intestinal obstruction. On laparotomy, the patient was found to have adhesive intestinal obstruction due to a previous abdominal hysterectomy. On careful inspection of the bowel loops, a 2cm ileal lesion on the mesenteric border was detected. Segmental ileal resection was performed. Histopathology revealed a mesenchymal tumor with immunohistochemical analysis suggestive of schwannoma (CD117-, CD34-, SMA-, and S100+). The patient had an uneventful recovery with no recurrence on follow-up.