title: Persistent sciatic artery complicated by aneurysm formation and thrombosis.
abstract: A persistent sciatic artery is a rare embryological anomaly. We report a case of a persistent sciatic artery with aneurysm formation and thrombosis in a patient with rheumatoid arthritis/systemic lupus erythematosus overlap syndrome and Raynaud's phenomenon. The diagnosis and complete, accurate evaluation of the arterial anatomy of the lower limb were achieved using computed tomographic angiography.
authors.affiliation: Department of Radiology and Imaging, Queen Elizabeth Hospital, Hong Kong. dicksonfunghs@gmail.com
authors.forename: H S
authors.initials: HS
authors.lastname: Fung
authors.forename: S
authors.initials: S
authors.lastname: Lau
authors.forename: M K
authors.initials: MK
authors.lastname: Chan
authors.forename: K W
authors.initials: KW
authors.lastname: Tang
authors.forename: Y L
authors.initials: YL
authors.lastname: Cheung
authors.forename: S C H
authors.initials: SC
authors.lastname: Chan
mesh_terms: D000783:Aneurysm / Q000209:etiology*; D005260:Female; D005263:Femoral Artery / Q000002:abnormalities*; D006801:Humans; D035002:Lower Extremity / Q000098:blood supply*; D008875:Middle Aged; D013927:Thrombosis / Q000209:etiology*