title: Case report: Imaging features of perianal leiomyoma.
abstract: A leiomyoma is a benign mesenchymal neoplasm that usually develops where smooth muscle is present. In this report, we present a rare case of perianal leiomyoma. The external anal sphincter was stretched over the surface of the leiomyoma and the internal anal sphincter was intact on surgery. It was confirmed as a deep soft-tissue leiomyoma on pathology. We describe the ultrasonographic and MRI findings of a rare case of perianal leiomyoma, together with differential diagnoses.
authors: Department of Radiology, Kyung Hee University Medical Center, Dongdaemun-Gu, Seoul, Korea. radhjkim@khu.ac.kr
authors: H J
authors: HJ
authors: Kim
authors: K Y
authors: KY
authors: Lee
authors: G H
authors: GH
authors: Lee
authors: Y W
authors: YW
authors: Kim
mesh_terms: D000328:Adult; D001003:Anal Canal / Q000000981:diagnostic imaging / Q000473:pathology; D001005:Anus Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D003287:Contrast Media; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging / Q000379:methods; D014463:Ultrasonography
chemical_list: D003287:Contrast Media