Coloured composite 2D and 3D magnetic resonance imaging (MRI) angiogram in right profile view of the brain of a 35-year-old patient hospitalized in the neurosurgical emergency room for attacks of severe headaches and suspected subarachnoid haemorrhage. An initial CT of the brain found a right parieto-occipital intra-parenchymal haemorrhage. This MRI reveals a subarachnoid haemorrhage secondary to a rupture of a right parieto-occipital arteriovenous malformation.