title: Spontaneous rupture of an intrahepatic aneurysm of the right hepatic artery caused by segmental arterial mediolysis.
abstract: Segmental arterial mediolysis (SAM) is a non-arteriosclerotic, non-inflammatory arteriopathy characterised by dissecting aneurysms and most commonly found in abdominal arteries. A rupture of a visceral artery aneurysm is generally associated with high mortality. We present the case of a 57-year-old woman with a rupture of an intrahepatic aneurysm that led to intra-abdominal haemorrhage. The patient was surgically treated by evacuating the abdominal haematoma and ligature of the right hepatic artery. Histology of the right hepatic artery revealed the diagnosis of SAM. Six months postoperatively, the patient was in excellent physical condition with normal liver function and arterial blood flow of the right hepatic sections over collateral circulation.
authors.affiliation: Department of Surgery, Kantonsspital Winterthur, Winterthur, Switzerland.
authors.forename: Corinne
authors.initials: C
authors.lastname: Beerle
authors.affiliation: Department of Surgery, Kantonsspital Winterthur, Winterthur, Switzerland.
authors.forename: Christopher
authors.initials: C
authors.lastname: Soll
authors.affiliation: Department of Surgery, Kantonsspital Winterthur, Winterthur, Switzerland.
authors.forename: Stefan
authors.initials: S
authors.lastname: Breitenstein
authors.affiliation: Department of Surgery, Kantonsspital Winterthur, Winterthur, Switzerland.
authors.forename: Felix
authors.initials: F
authors.lastname: Grieder
mesh_terms: D017542:Aneurysm, Ruptured / Q000209:etiology*; D000072226:Computed Tomography Angiography; D005260:Female; D006406:Hematoma / Q000209:etiology; D006499:Hepatic Artery; D006801:Humans; D008099:Liver / Q000473:pathology; D008875:Middle Aged; D012422:Rupture, Spontaneous / Q000209:etiology; D014652:Vascular Diseases / Q000150:complications / Q000473:pathology