Haemangioblastoma Case 1Case 2 45-year-old patient presented with headache. MRI showed a large cystic lesion with an avidly enhancing nodule. The mass effect on the outlets of the 4th ventricle caused supratentorial hydrocephalus. A 20-year-old patient presented with headache. MRI showed acute hydrocephalus secondary to a large cystic lesion in the posterior fossa with an enhancing nodule. A haemangioblastoma was diagnosed following resection.