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Non-aneurysmal perimesencephalic haemorrhage accounts for a small number of subarachnoid haemorrhages.1 It is generally benign in its course and prognosis, although occasional patients develop hydrocephalus and seizures; vasospasm is rare.1 We describe a patient with perimesencephalic haemorrhage who developed delayed vasospasm and subsequent mesencephalic infarction.
A 62-year-old man presented with sudden intense headache. He had peripheral arterial occlusive disease, myocardial infarction and chronic kidney disease. Neurological examination was normal. CT scan of head showed subarachnoid haemorrhage in the typical distribution of perimesencephalic haemorrhage (figure 1A). CT angiography showed no …
Contributors HSG: primary physician in the presented case, acquisition of data analysis and interpretation; MS: critical revision of the manuscript for important intellectual content; and CCT: case supervision and critical revision of the manuscript for important intellectual content.
Competing interests None.
Provenance and peer review Not commissioned. Externally peer reviewed. This paper was reviewed by Richard Nelson, Bristol, UK.