Acute bilateral cerebellar infarction in the territory of the medial branches of posterior inferior cerebellar arteries

The most frequent type of cerebellar infarcts involved the posterior inferi or cerebellar artery (PICA) and superior cerebellar artery territories but bilateral involvement of lateral or medial branches of PICA is extremely ra re. In this report, we present a 55-year-old male who admitted to hospital with vomiting, nausea and dizziness. On examination left-sided hemiparesia and ataxic gait were detected. Infarct on bilateral medial branch of PICA a rtery territories was found out with cranial magnetic resonance imaging (MR I) technique and 99% stenosis of the left vertebral artery was found out wi th digital subtraction arteriography. The patient was put on heparin treatm ent. After 3 weeks, his complaint,, and symptoms had disappeared except for mild gait ataxia. (C) 2001 Elsevier Science B.V. All rights reserved.