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Updated: Aug 7, 2026

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
Early rupture of an anterior communicating artery pseudoaneurysm after transsphenoidal surgery: A case report and
Satoshi Shitara1,2, Masayuki Yamagishi1, Hisao Hirai1
1Department of Neurosurgery, Subarukai Kotoh Memorial Hospital, Higashiomi, Japan.
Background:
Intracranial pseudoaneurysm after transsphenoidal surgery (TSS) is rare, particularly in the anterior communicating artery (AcomA).
Case Description:
A 47-year-old female underwent extended TSS for a giant pituitary adenoma with gross-total resection. She developed a subarachnoid hemorrhage on the night of surgery. Angiography revealed a ruptured AcomA pseudoaneurysm, which was successfully treated with coil embolization. The patient achieved good recovery (modified Rankin Scale 1).
Conclusion:
Early postoperative hemorrhage after TSS should prompt early vascular imaging, as timely endovascular treatment can be life-saving.
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