Bilateral Thalamic Infarction and Double Depressor Palsy Secondary to Infarction of Artery of Percheron: A case report

Introduction: Bilateral thalamic infarcts are a rare occurrence and accounts for about 22 to 35% of all the thalamic infarcts. Purpose: We report a case of bilateral thalamic infarction and double depressor palsy secondary to infarction of artery of Percheron. Results: A 24-year-old lady with sudden onset of diplopia without other neurological involvement. On examination patient had double depressor palsy. Magnetic resonance imaging (MRI) revealed an occlusion of the Artery of Percheron with infarction of the thalami and part of the midbrain. Conclusion: Bilateral thalamic infarction with double depressor palsy is a rare manifestation and it should raise the suspicion of an Artery of Percheron occlusion.