@article{oai:sapmed.repo.nii.ac.jp:00008022, author = {松本, 明彦 and 中川原, 譲二 and 武田, 利兵衛 and 和田, 啓二 and 鎌田, 一 and 井出, 渉 and 橋本, 透 and 高坂, 研一 and 中村, 順一 and 末松, 克美}, issue = {1}, journal = {北海道脳神経疾患研究所医誌 = Journal of Hokkaido Brain Research Foundation}, month = {Aug}, note = {A 71 -year-old woman with a partially thrombosed giant intracranial aneurysm at the cavernous portion of the left ICA which simulated cranial-base tumor is presented. CT scan showed a large, round, and mottled high density area in the sella turcica and suprasellar area that had ringlike enhancement with contrast medium. On the cerebral angiography, the vascular shadow from the cavernous portion of the left ICA was demonstrated as a tumor stain. MRI showed a mixed signal intensity on both T1 and T2 weighted images. These findings suggested the presence of a cranial-base tumor. However, the pathological diagnosis at the postmortem examination indicated a partially thrombosed giant intracranial aneurysm. Patients with a giant intracranial aneurysm usually show as having an intracranial space-occupying lesion, than a subarachnoid hemorrhage. Therefore, there are not a little made a missdiagnosis of a brain tumor. The pathogenesis of the thrombosed giant intracranial aneurysm was discussed and reviewed in regard to the correlation of MRI and pathological findings.}, pages = {97--102}, title = {血栓化巨大脳動脈瘤 : MRIと病理所見の対比を中心に}, volume = {2}, year = {1989} }