{"id":"07dccb83-d49b-4297-a315-996931f3469d","slug":"cavernous-angioma-presenting-with-subarachnoid-hemorrhage-which-was-diffusely-distributed-in-the-basal-cisterns-and-mimicked-intracranial-aneurysm-rupture","title":"Cavernous angioma presenting with subarachnoid hemorrhage which was diffusely distributed in the basal cisterns and mimicked intracranial aneurysm rupture","authors":["Atsuhito Uneda","Satoru Yabuno","Takahiro Kanda","Kenta Suzuki","Koji Hirashita","Masatoshi Yunoki","Kimihiro Yoshino"],"abstract":"Background: Intracranial cavernous angiomas are typically associated with intraparenchymal hemorrhage, but isolated subarachnoid hemorrhage (SAH) due to these lesions is rare. Previous reports have noted cases of cavernous angiomas presenting with SAH that mimics aneurysmal rupture, yet such instances remain uncommon. This report describes a case of a cavernous angioma that presented with diffuse SAH in the basal cisterns. Summary: A 50-year-old woman experienced sudden severe headache and vomiting, leading to the discovery of diffuse SAH on CT imaging. Despite initial imaging not revealing a source, subsequent MRI identified a cavernous angioma on the left cerebellar hemisphere. The patient opted for conservative management and remained symptom-free for 21 months post-event. Conclusion: This case highlights the importance of considering cavernous angiomas in the differential diagnosis of angiographically negative SAH. It underscores the necessity of careful review of imaging studies and the potential for delayed MRI to reveal such lesions. Keywords: cavernous angioma, subarachnoid hemorrhage, angiographically negative, MRI, case report, neurosurgery","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/07dccb83-d49b-4297-a315-996931f3469d/featured/hero-1782420900616.png","publishDate":"2017-08-22T00:00:00.000Z","doi":"10.4103/sni.sni_210_17","categories":["Neurovascular","Image Report"],"fullTextUrl":"https://surgicalneurologyint.com/api/articles/07dccb83-d49b-4297-a315-996931f3469d/pdf"}