'A stroke of luck': a case report of a right-sided cerebellar cerebrovascular accident in a young man.

A 27-year-old man with a history of migraines, epilepsy and pulmonary stenosis presented to the emergency department with symptoms of vomiting, headache, visual disturbance and problems with balance. The team considered the possibility of intracranial pathology and an urgent CT head with contrast showed what appeared to be a large posterior fossa mass with an appearance suggestive of a primary haemangioblastoma, which was causing considerable mass effect. The patient had neurosurgery to relieve the obstruction and a biopsy of the area showed the mass to be an ischaemic infarct rather than a tumour. Further investigations following the stroke confirmed that the cause was due to having antiphospholipid syndrome and a patent foramen ovale. The patient made a good recovery following the operation and remains well.