ABSTRACT
Intraventricular cavernomas [IVC] are rare, however, haemorrhage from a lateral ventricle cavernoma seem to be even rarer. We report a case of trigonal tumour in a 53-year-old man who presented with intraventricular haemorrhage which was initially misdiagnosed as hypertensive. Diagnosis of a tumour origin of the bleeding was suspected 3 months later on MRI. The tumour was histologically confirmed to be a cavernoma. Only ten cases of IVC with symptomatic haemorrhage have been reported. Radiological diagnosis of IVC may be difficult because of their uncommon location, their voluminous size and sometimes their ventricular bleeding. Intraventricular cavernoma should be considered in the differential diagnosis of nontraumatic intraventricular haemorrhage even in patients with chornic hypertension