An arterio-venous malformation is an uncommon lesion of inappropriately formed cerebral vasculature. A rupture of these vessels often results in cerebral haemorrhage. Depending on the size and location, the nature of the bleeding could have varying results, from a severe headache to a catastrophic neurological deficit, the former being more common.

A sizeable portion of patients harbouring this malformation face seizures or epileptic fits that arise out of cortical irritation or hemodynamic alterations. Ravi, a 20-year-old engineering student, was brought to the emergency by his parents after one such convulsion that resulted in a sudden jerking of his left arm and leg, followed by a transient weakness in those limbs.