title: Perianal haematoma: an unusual feature of a leaking aortic aneurysm.
mesh_terms: D000368:Aged; D001003:Anal Canal; D001012:Aorta, Abdominal; D001019:Aortic Rupture / Q000150:complications*; D006406:Hematoma / Q000209:etiology*; D006801:Humans; D008297:Male