TY - JOUR
T1 - Penetration of the optic chiasm by a ruptured anterior communicating artery aneurysm. Case report
AU - Date, Isao
AU - Akioka, Tatsuro
AU - Ohmoto, Takashi
PY - 1997/8
Y1 - 1997/8
N2 - There are few reports of anterior communicating artery aneurysms causing visual symptoms, and penetration of the optic chiasm by such aneurysms has not been reported. A 40-year-old man presented with the abrupt onset of left homonymous hemianopsia, right visual acuity disturbance (finger counting), and slight headache. Angiography disclosed a 7-mm anterior communicating artery aneurysm projecting inferiorly. After the neck of the aneurysm was clipped, the dome of the aneurysm was resected. The operation confirmed that the aneurysm had penetrated the fight half of the optic chiasm and the thrombosed dome had also compressed the right optic tract. Although the aneurysm was successfully clipped, the visual disturbance persisted after surgery, suggesting that the damage to the visual pathways by aneurysm penetration was irreversible in this case.
AB - There are few reports of anterior communicating artery aneurysms causing visual symptoms, and penetration of the optic chiasm by such aneurysms has not been reported. A 40-year-old man presented with the abrupt onset of left homonymous hemianopsia, right visual acuity disturbance (finger counting), and slight headache. Angiography disclosed a 7-mm anterior communicating artery aneurysm projecting inferiorly. After the neck of the aneurysm was clipped, the dome of the aneurysm was resected. The operation confirmed that the aneurysm had penetrated the fight half of the optic chiasm and the thrombosed dome had also compressed the right optic tract. Although the aneurysm was successfully clipped, the visual disturbance persisted after surgery, suggesting that the damage to the visual pathways by aneurysm penetration was irreversible in this case.
KW - Anterior communicating artery
KW - Cerebral aneurysm
KW - Optic chiasm
UR - http://www.scopus.com/inward/record.url?scp=0030739113&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030739113&partnerID=8YFLogxK
U2 - 10.3171/jns.1997.87.2.0324
DO - 10.3171/jns.1997.87.2.0324
M3 - Article
C2 - 9254100
AN - SCOPUS:0030739113
VL - 87
SP - 324
EP - 326
JO - Journal of Neurosurgery
JF - Journal of Neurosurgery
SN - 0022-3085
IS - 2
ER -