Introduction:
The artery of Percheron (AP) is an anatomical variant of the arteries of the posterior circulation of the brain. Occlusion of this artery will result in bilateral paramedian thalamic infarction with or without midbrain involvement (1) . The clinical manifestations of ischemic stroke in this area can be summarised as a triad: altered consciousness, paralysis of verticality of gaze and memory disorders (2). They are rarely associated with pyramidal signs or cranial nerve damage and the brain scan is usually normal (3). This often leads to misdiagnosis in our low-income countries where MRI (Magnetic Resonance Imaging) is still not widely available. We report a case of Weber’s syndrome secondary to an occlusion of Percheron’s artery.