RT Journal Article SR Electronic T1 Vertigo and upside down vision due to an infarct in the territory of the medial branch of the posterior inferior cerebellar artery caused by dissection of a vertebral artery. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 188 OP 189 DO 10.1136/jnnp.55.3.188 VO 55 IS 3 A1 N Charles A1 C Froment A1 G Rode A1 A Vighetto A1 F Turjman A1 M Trillet A1 G Aimard YR 1992 UL http://jnnp.bmj.com/content/55/3/188.abstract AB A 48 year old woman developed an acute vestibular syndrome associated with upside down vision a few hours after minor cervical trauma. Magnetic resonance imaging showed an ischaemic lesion in the territory of the medial branch of the posterior inferior cerebellar artery. An arteriogram showed a dissection of the left extracranial vertebral artery.