title: Rectal leiomyosarcoma: an unusual rectal malignancy mimicking fecal impaction in a 19-year-old man.
authors.affiliation: Department of Medicine, Maimonides Medical Center, Brooklyn, New York, USA.
authors.forename: Ting-Hui
authors.initials: TH
authors.lastname: Hsieh
authors.forename: Bradly D
authors.initials: BD
authors.lastname: Clark
authors.forename: Kadirawel
authors.initials: K
authors.lastname: Iswara
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D001706:Biopsy; D003113:Colonoscopy; D003937:Diagnosis, Differential; D005244:Fecal Impaction / Q000175:diagnosis*; D006801:Humans; D007150:Immunohistochemistry; D007890:Leiomyosarcoma / Q000175:diagnosis*; D008297:Male; D012004:Rectal Neoplasms / Q000175:diagnosis*; D012007:Rectum / Q000473:pathology; D014057:Tomography, X-Ray Computed; D015431:Weight Loss; D055815:Young Adult