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The zebra sign
A 65 year old female was transferred to the Hyperacute Stroke Unit after a routine L5/S1 laminectomy. She suffered a small dural tear. 3 hours post procedure, her GCS dropped to 3. CT scan showed a bi-cerebellar haemorrhage and MRI brain the next day revealed a convexity subarachoid haemorrhage. Imaging was reviewed with neuroradiologists and neurosurgeons. They recognised this as a typical case of post-dural puncture remote cerebellar haemorrhage. In surgical literature there are many cases reported since 1981 of "the Zebra sign". Patients can become obtunded up to 72 hours after the injury. The mechanism of the haemorrha...
Source: Journal of Neurology, Neurosurgery and Psychiatry - October 14, 2015 Category: Neurosurgery Authors: Patel, B., Nagendran, A., Khan, U. Tags: Brain stem / cerebellum, Stroke, Radiology, Radiology (diagnostics) Thur 21, Parallel session 5: Therapeutics Source Type: research