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Updated: Aug 22, 2026

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
Postoperative pseudoaneurysm of the superficial temporal artery (S.T.A.) treated with Thrombostat (thrombin glue)
L Bobinski1, S Boström, J Hillman
1Department of Neurosurgery, University Hospital, SE-581 85 Linköping, Sweden.
Background:
Pseudo-aneurysm is a rare complication of craniotomy. Blunt injury to the temporal artery region is the usual cause, but still a rare complication.
Clinical Presentation:
A patient with subarachnoid hemorrhage was successfully treated by aneurysm clipping. The patient developed hydrocephalus, and was admitted for a shunt operation seventeen days later. The craniotomy had healed normally, but a palpable temporal lump was present in the skin incision.
Intervention:
The pulsating mass proved to be a postoperative aneurysm of the superficial temporal artery (S.T.A.) and was successfully occluded with 500 units Thrombostat (thrombin glue) which was injected into the aneurysm sac using a 22-gauge needle guided by ultrasound. The permanency of the obliteration was verified by ultrasound examination.

