title: Large anterior communicating artery aneurysm with temporal hemianopsia. Case report.
abstract: Giant or large anterior communicating artery (ACOA) aneurysms producing bitemporal hemianopsia are extremely rare. A case is presented of an ACOA aneurysm measuring 2 X 1.4 cm with the patient having had a post-traumatic amaurosis of the left eye for many years. Then he had a subarachnoid hemorrhage and subsequently developed impaired vision in the right eye and temporal hemianopsia. The aneurysm was visible on C.T. but disappeared on post-operative scans. Visual acuity improved radically after treatment with neck ligation and opening of the sac.
mesh_terms: D000792:Angiography; D001766:Blindness / Q000209:etiology*; D007839:Functional Laterality; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014794:Visual Fields; D014795:Visual Pathways