A case of anterior choroidal artery injury after resection of a pilocytic astrocytoma in the amygdale-a case report.

The anterior choroidal artery (AChA) arises from the last segment of internal carotid artery (ACI), the communicating C7 segment and comprises the terminal branch of ACI. Anatomical its origin located supraclionoidal after the ophthalmic C6 segment of ACI and after the rise of posterior communicating artery. The AChA gains greater importance because of its small size and its region of blood supply. With its perforating branches supplies important intracranial structures such as the optic tract, the posterior limb of the internal capsule, the lateral geniculate body, the medial temporal lobe and the medial area of the pallidum. The anterior choroidal artery is a fine artery and consists of two parts, a cisternal and a plexal one. There are only few studies published, which describe the exact anatomy and the impact of its damage. On the present report, we discuss a case of an iatrogenic injury of the anterior choroidal artery and its hazardous consequences.