[Trigonal cavernous angioma: case report]

The authors report on an intraventricular cavernous angioma located at the right trigone in a 25-year-old male patient presented with a predominantly intralesional haemorrhage. Neuroimaging led to an accurate preoperative diagnosis although the typical low intensity perilesional ring of gliosis and hemosiderin was not present. The lesion was microsurgically removed using an stereotactically guided posterior temporal transsulcal approach.