Primary malignant leiomyoblastoma of the sigmoid colon.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006338:Heart Neoplasms / Q000556:secondary; D006801:Humans; D007889:Leiomyoma / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012811:Sigmoid Neoplasms / Q000473:pathology / Q000601:surgery*