@article{oai:kanazawa-u.repo.nii.ac.jp:00026972, author = {見崎, 孝一 and 内山, 尚之 and 毛利, 正直 and 上出, 智也 and 中田, 光俊 and Misaki, Kouichi and Uchiyama, Naoyuki and Mohri, Masanao and Kamide, Tomoya and Tsutsui, Taishi and Kanamori, Naomi and Kurokawa, Keisuke and Nakada, Mitsutoshi}, issue = {11}, journal = {Acta Neurochirurgica}, month = {Nov}, note = {This is the first report on the mechanism of pseudoaneurysm formation after withdrawal of a stent retriever. A 79-year-old woman developed cardiogenic embolization of the distal middle cerebral artery (M2). The deployed stent retriever bent because of vessel tortuosity. After withdrawal of the stent with strong resistance, complete revascularization was achieved, but an extravasation was detected at the site. Eight hours after disappearance of the extravasation, re-bleeding occurred with aneurysm-like pooling of contrast media. Direct surgical observation confirmed a pseudoaneurysm formation. The pseudoaneurysm was likely formed by avulsion of a fine vessel during withdrawal of the stent retriever at a tortuous vessel. © 2016 Springer-Verlag Wien, Embargo Period 12 months}, pages = {2085--2088}, title = {Pseudoaneurysm formation caused by the withdrawal of a Trevo ProVue stent at a tortuous cerebral vessel: a case report}, volume = {158}, year = {2016} }