title: Quiz case of the month. Partial agenesis of the internal carotid artery with collateral circulation through an enlarged inferior tympanic artery.
authors.affiliation: Department of Radiology, University Hospitals, Leuven, Belgium.
authors.forename: B
authors.initials: B
authors.lastname: Verbist
authors.forename: R
authors.initials: R
authors.lastname: Hermans
authors.forename: F
authors.initials: F
authors.lastname: Devlies
authors.forename: B
authors.initials: B
authors.lastname: De Foer
authors.forename: A L
authors.initials: AL
authors.lastname: Baert
mesh_terms: D000328:Adult; D002343:Carotid Artery, Internal / Q000002:abnormalities*; D003097:Collateral Circulation; D004432:Ear, Middle / Q000098:blood supply; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography