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Acute Hydrocephalus from Subarachnoid Hemorrhage - Case 1

A 43 year-old man presented with a sudden, severe headache, nausea and vomiting. Over the next eight hours, he become obtunded and fell into coma.

Show the Subarachnoid Blood     Show the Enlarged Temporal Horns     Show the Enlarged Lateral Ventricles

Axial CT scan - note the subarachoid hemorrhage in the basal cisterns and fourth ventricle. However, also note the prominent hydrocephalus with dilatation of the anterior and temporal horns, as well as the third and fourth ventricles. Acute hydrocephalus is a potential complication of subarachnoid blood, either impairing absorption of CSF or flow of CSF within the ventricular system. This picture requires emergency neurosurgery and ventricular shunting.

Revised 04/21/06.
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