An uncommon mimic of spontaneous subarachnoid haemorrhage.

A 43-year-old woman presented with first episode of seizure and a 1-week history of neck pain and dizziness in February 2010. She had a similar attack but without a seizure 1 month earlier. Computed tomography (CT) of the brain showed communicating hydrocephalus and a tinge of subarachnoid hyperintensity suspicious of previous subarachnoid haemorrhage (Fig 1a). Angiography did not reveal any underlying vascular lesion. The hydrocephalus was managed eventually with a ventriculoperitoneal shunt and cerebrospinal fluid was noted to be xanthochromic. An uncommon mimic of spontaneous subarachnoid haemorrhage C A S E R E P O R T