Chiasmal apoplexy: haemorrhage from a cavernous malformation in the optic chiasm.
We present a patient who experienced sudden onset of orbital headache, visual loss and bitemporal visual field defect. MRI of the optic chiasm suggested a diagnosis of haemorrhage and hence a vascular malformation. Pterional craniotomy revealed an intrachiasmatic haematoma with a cavernous angioma. The malformation was totally excised and vision improved after surgery. The syndrome of chiasmal apoplexy is discussed.
Regli
L
L
Department of Neurosurgery, University Hospital, Lausanne, Switzerland.
de Tribolet
N
N
Regli
F
F
Bogousslavsky
J
J
D000328:Adult; D002536:Cerebral Arteries / Q000002:abnormalities*; D002543:Cerebral Hemorrhage / Q000150:complications* / Q000175:diagnosis; D002561:Cerebrovascular Disorders / Q000209:etiology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009897:Optic Chiasm / Q000098:blood supply*