[A case of rectal schwannoma presenting with hematochezia].
Rectal schwannoma is a rare mesenchymal tumor originating from Schwann's cell. We experienced a 61- year-old female patient who complained of blood tinged and narrow calibered stool for several years, and found a 4 cm sized submucosal tumor with a central ulcer on the rectal wall during colonoscopy. She underwent transanal excision. Microscopically, the tumor was composed of fasciculating bundles of spindle cells with benign nuclear atypia and peripheral lymphoid cell cuffing. Tumor cells showed a diffuse strong immunoreactivity to S-100 protein, but not stain for CD 34, desmin and smooth muscle actin. This is the first case report of rectal schwannoma in Korea.
Lee
Seong Hun
SH
Department of Internal Medicine, Pusan National University College of Medicine, Seo-gu, Busan, Korea.
Kim
Tae Oh
TO
Hwang
Sang Youn
SY
Ryu
Dong Yup
DY
Lee
Dong Hyun
DH
Park
Won Il
WI
Kim
Gwang Ha
GH
Heo
Jeong
J
Kang
Dae Hwan
DH
Song
Geun Am
GA
Cho
Mong
M
D014408:Biomarkers, Tumor / Q000032:analysis; D003113:Colonoscopy; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D006801:Humans; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D012007:Rectum; D014057:Tomography, X-Ray Computed
D014408:Biomarkers, Tumor