A 59-year-old woman with sudden onset of coma
What is your dignosis ?
A.Hypoglycemia
B.Pontine myelinolysis
C.Basilar artery occlusion
D.Catalepsy
?
?
?
The answer is Basilar Artery Occlusion
A
B
C
D
Basilar artery occlusion accounts for 10% of unexplained, nontraumatic coma.
The mortality rate is high, around 80-90% without treatment.
Noncontrast CT often demonstrates hyperdense basilar artery (A, arrow).
CT angiography may confirm the diagnosis by showing the occlusion of the basilar artery (B, arrows).
X-ray angiography can not only validate the CT findings (C, arrow), but also allow for the recanalization of the occluded basilar artery by direct thrombectomy (D, arrow).
This patient had a complete recovery of symptoms with no neurologic deficit.
中文版：
女性，59歲，突發昏迷
正確答案？
A.低血糖
B.腦橋脫髓鞘
C.基底動脈閉塞
D.僵直性暈厥
診斷為：基底動脈閉塞
基底動脈閉塞在難以解釋的非創傷性昏迷中約佔10%。
該病死亡率非常高，約80-90%的患者未及時接受治療。
CT平掃可見基底動脈密度增高（A圖箭頭）。
CT血管造影可確診該病，表現為基底動脈閉塞（B圖箭頭）。
X線血管造影不僅可以證實CT的診斷（C圖箭頭），還可觀察血栓切除術後閉塞血管的再通情況（D圖箭頭）。
本例患者完全恢復，未遺留神經缺陷症狀。
From AJNR Classi Case