title: Perirectal hematoma presenting as purpura.
authors.affiliation: Massachusetts General Hospital, Harvard Medical School, Boston, USA.
authors.forename: K S
authors.initials: KS
authors.lastname: Kane
authors.forename: D M
authors.initials: DM
authors.lastname: Quirk
authors.forename: J
authors.initials: J
authors.lastname: MacLean
authors.forename: B T
authors.initials: BT
authors.lastname: Mackool
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006406:Hematoma / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D017543:Iliac Aneurysm / Q000150:complications* / Q000175:diagnosis; D008297:Male; D011693:Purpura / Q000209:etiology*; D012007:Rectum