Schwannoma of the Rectosigmoid Colon Publisher

Summary: Rare colon Schwannoma may go unnoticed until surgery. Study presents a case of a 58-year-old woman with misleading symptoms. How often are these tumors misdiagnosed? #Schwannoma #ColorectalHealth

Mokhtari M ; Iranpoor P ; Haghighi AG ; Ghahremani L
Source: Advanced Biomedical Research Published:2022

Abstract

Schwannoma is a rare tumor in the colon which originates from the peripheral nerve plexus. Most of the cases have been asymptomatic but occasionally present as an obstructive mass. Abdominal investigations are effective in some cases, but usually, they are not informative. A significant number of cases have been detected after their operation by histopathology examination. Immune and histochemical staining shows the spindle cells that have been positive for S-100 and vimentin, but negative for CD34 and smooth muscle actin. If the diagnosis of Schowannoma is confirmed preoperatively, segmental resection is recommended. In this case report, we presented a 58-year-old woman with pelvic mass and normal colonoscopy that mimic extramural large uterine myoma with extraluminal pressure effect on the rectosigmoid. © 2022 Elsevier B.V., All rights reserved.