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  • Title: Upper thoracic intradural-extramedullary cavernous malformation presenting as subarachnoid hemorrhage without spinal dysfunction: a case report and review of the literature.
    Author: Tao CY, He M, Zhang YK, You C.
    Journal: Br J Neurosurg; 2014 Dec; 28(6):808-10. PubMed ID: 24878074.
    Abstract:
    A 45-year-old man had subarachnoid hemorrhage (SAH) which was confirmed by lumbar puncture, since it was negative on head computed tomography. The result of neurological examination was normal. Following pan-cerebral angiography and cranial magnetic resonance imaging (MRI) failed to find out the cause of bleeding. The whole spinal MRI revealed an intradural-extramedullary mass lesion at the upper thoracic level which was consistent with cavernous malformation after surgery. When patients presented with SAH of no spinal symptoms, the diagnosis of an intradural-extramedullary cavernous malformation is challenging. A whole spinal workup should be considered in a patient with spontaneous SAH when bleeding from intracranial origin is carefully excluded.
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