title: A rare case of a signet ring cell carcinoma of the colon mimicking a juvenile polyp.
abstract: Primary signet ring cell carcinoma (SRC) of colon at early stage is quite rare. Only 26 cases were reported until now. We report an early stage of primary SRC which was misdiagnosed as a juvenile polyp and treated with polypectomy followed by surgical resection. A 21-year-old male was administered for hematochezia. Abdominopelvic enhanced computed tomography revealed a polyp with active bleeding at the proximal rectum just below the rectosigmoid junction. Colonoscopy examination revealed a colon polyp with 0.5 cm sized head. Polypectomy was performed with snare and the polyp was completely removed. Biopsy revealed SRC. Surgical resection was also performed and there were no residual tumor or lymph node metastasis in the surgical specimen.
authors.affiliation: Department of Internal Medicine, Armed Forces Daejeon Hospital, Daejeon, Korea.
authors.forename: Sun Hyung
authors.initials: SH
authors.lastname: Kang
authors.forename: Woo Suk
authors.initials: WS
authors.lastname: Chung
authors.forename: Chang Lim
authors.initials: CL
authors.lastname: Hyun
authors.forename: Hee Seok
authors.initials: HS
authors.lastname: Moon
authors.forename: Eaum Seok
authors.initials: ES
authors.lastname: Lee
authors.forename: Seok Hyun
authors.initials: SH
authors.lastname: Kim
authors.forename: Jae Kyu
authors.initials: JK
authors.lastname: Sung
authors.forename: Byung Seok
authors.initials: BS
authors.lastname: Lee
authors.forename: Hyun Yong
authors.initials: HY
authors.lastname: Jeong