title: [A case of rectal leiomyosarcoma].
mesh_terms: D006801:Humans; D007890:Leiomyosarcoma / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed