Haemangioblastomas are the most common primary posterior fossa tumours in adults. This case in a 27 year old demonstrates typical characteristics which are found in 60% of cases: a cyst, with non-enhancing walls, except for a mural nodule which vividly enhances and often has prominent serpentine flow voids.
Complete surgical resection of the nodule is curative, provided there are no operative complications, of which bleeding is the most common. Preoperative embolisation is therefore frequently performed.
Approximately 25% of cases are associated with von Hippel Lindau (vHL) syndrome, in which case they are typically multiple, and are more frequently seen supratentorially.
1. Grossman RI, Yousem DM. Neuroradiology: The Requisites. 2nd edition, Mosby 2003
2. Osborn A, Blaser S, Salzman K. Diagnostic Imaging: Brain. Amirsys 2004
Credit: Dr Frank Gaillard