Schwannomas are tumors of the peripheral nervous system that develop from Schwann cells. They uncommonly develop in the gastrointestinal tract (2-6 %), usually located in the stomach (83 %) and in the small and large intestines in 12 % of cases.
Case reportAn 87-year-old female, without any personal background of interest, was studied due to epigastric pain and dyspepsia. A contrast-enhanced computed tomography (CT) scan reported an intraluminal neoplastic process in the sigmoid colon, approximately