title: Benefits of endorectal ultrasound for management of smooth-muscle tumor of the rectum: report of three cases.
abstract: Smooth-muscle tumor of the rectum is rare, and the therapeutic strategy is still controversial. Endorectal ultrasound was used to evaluate three patients with smooth-muscle tumor of the rectum. Endorectal ultrasound demonstrated a homogenous hypoechoic tumor without invasion to the perirectal tissue in two patients. The tumor was 5 cm in diameter in one patient and 4 cm in diameter in the other patient, and they were excised locally. Their histologic types were leiomyoma and leiomyosarcoma. The third patient had a recurrent leiomyosarcoma. Proctosigmoidoscopy found a linear lesion with ulcerated mucosa on the rectal wall. Endorectal ultrasound observed a hypoechoic solid tumor of 3.5 cm x 1 cm, which involved the mucosal, submucosal, and muscle layers of the rectal wall. Disruption of the first hypoechoic layer was identified. Abdominoperineal resection was performed. Endorectal ultrasound follow-up revealed no evidence of recurrence in any of these patients. Endorectal ultrasound can help to define the extent of disease and may be a useful adjunct in deciding about the appropriate surgical procedure in these diseases.
authors.affiliation: Department of Surgery, Kaohsiung Medical College, Taiwan.
authors.forename: J S
authors.initials: JS
authors.lastname: Hsieh
authors.forename: C J
authors.initials: CJ
authors.lastname: Huang
authors.forename: J Y
authors.initials: JY
authors.lastname: Wang
authors.forename: T J
authors.initials: TJ
authors.lastname: Huang
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000000981:diagnostic imaging* / Q000601:surgery; D007890:Leiomyosarcoma / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging / Q000379:methods; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D012007:Rectum / Q000000981:diagnostic imaging / Q000473:pathology; D012008:Recurrence; D018235:Smooth Muscle Tumor / Q000000981:diagnostic imaging* / Q000601:surgery; D014463:Ultrasonography