Anomalous arteries at the base of the brain - A case report

Anomalies of the branches of internal carotid artery can lead to serious clinical conditions like stroke. We report here an anomalous pattern of the cerebral arteries. The left internal carotid artery was smaller than the right and it continued as middle cerebral artery instead of dividing into anterior and middle cerebral arteries. It also failed to give the posterior communicating artery. The right internal carotid artery was almost double the size compared to the left internal carotid artery. It gave rise to a common trunk which divided into right and left anterior cerebral arteries. The knowledge of these anomalous arteries may be useful for neurosurgeons, radiologists and clinicians in general.