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This case illustrates the complexities in diagnosing and managing basilar artery perforator pseudoaneurysms following subarachnoid hemorrhage.

Subarachnoid hemorrhage from a basilar artery perforator pseudoaneurysm: a rare challenging lesion in the posterior circulation. Illustrative case

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This case illustrates the complexities in diagnosing and managing basilar artery perforator pseudoaneurysms following subarachnoid hemorrhage.
Reported the case of a 74-year-old man with subarachnoid hemorrhage.
Utilized digital subtraction angiography to identify the pseudoaneurysm.
Pursued conservative management due to high procedural risks.
Spontaneous thrombosis of the pseudoaneurysm observed on postoperative day 2.
Patient experienced complications including vasospasm, infarction, and coma.
Patient passed away on day 21, illustrating poor outcomes despite radiographic improvements.

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Case report reveals challenges in managing basilar artery pseudoaneurysm, indicating conservative treatment is crucial.

Lhamo et al. (2026) studied this question.

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