- Author:
Dong Geon LEE
1
;
Jin LEE
;
Bo Mi KIM
;
Su Jin JEONG
;
Eun Hye OH
;
Yong Eun PARK
;
Jongha PARK
;
Tae Oh KIM
Author Information
- Publication Type:CASE REPORT
- From:The Korean Journal of Gastroenterology 2021;77(2):84-87
- CountryRepublic of Korea
- Language:English
- Abstract: Colorectal perineuriomas are benign mucosal-based mesenchymal tumors composed of perineurial cells and show serrated or hyperplastic crypts in epithelium on histopathological evaluation. Most perineuriomas are usually presented as sessile polyps and often as subepithelial tumors. In this case, colonoscopy revealed a rectal subepithelial tumor (measuring approximately 7 mm) with yellowish-colored normal mucosa. A rectal neuroendocrine tumor was suspected, and cap-assisted endoscopic mucosal resection was performed. Histopathological examination of the resected specimen revealed bland spindle cells showing immunopositivity for CD34.The patient was finally diagnosed with rectal perineurioma