Leiomyosarcoma of the rectum.
D000328:Adult; D001706:Biopsy; D006801:Humans; D007890:Leiomyosarcoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D008297:Male; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local / Q000601:surgery; D012004:Rectal Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery