Rectal abscesses in cancer patients.
D000038:Abscess / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis; D010386:Pelvic Neoplasms / Q000175:diagnosis*; D010502:Perineum; D012002:Rectal Diseases / Q000209:etiology*; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000601:surgery; D012811:Sigmoid Neoplasms / Q000175:diagnosis* / Q000601:surgery