[Contralateral infarction in the territory of the recurrent artery of Heubner after anterior communicating artery aneurysm surgery].

We report a rare case of postoperative infarction in the territory of the contralateral recurrent artery of Heubner (RAH) after surgery. A 67-year-old male was treated by the right pterional approach with clipping surgery for an unruptured anterior communicating artery aneurysm projecting inferiorly. Postoperative CT scan revealed infarctions in the left caudate head and the left putamen. In this case, the RAH probably coursed inferiorly to the A1 segment and was behind the aneurysmal dome. These infarctions were considered to result from occlusion of the left RAH because the clip blade extended too far beyond the aneurysmal neck.