Median artery of the corpus callosum in the context of AComA aneurysm rupture: The relevance of a perianeurysmal anatomy

It is important to understand the patient's vascular anatomy before treating cerebral aneurysms. The middle artery of the corpus callosum is one of the least common variations of the AComA complex. We describe the case of a 59-year-old woman who suffered a subarachnoid hemorrhage due to an AComA complex aneurysm that had ruptured. Fluorescein injection during the aneurysm clipping procedure revealed a partial obstruction of the middle artery, requiring repositioning of the clip. The vascular variations that our patients may exhibit at the time of aneurysm clipping must be kept in mind and understood.