Obsessive-compulsive disorder secondary to a right parietal lobe haemorrhage: a case report.

This case report presents a 39-year-old previously healthy man, who presented with typical obsessive-compulsive disorder and neurological symptoms and was found to have a right parietal lobe haemorrhage. His psychiatric and neurological recovery was associated with a complete radiological resolution. This report is consistent with recent imaging studies implicating the parietal lobe in the pathogenesis of obsessive-compulsive disorder and adds haemorrhage to the list of organic cerebral lesions causally associated with this disorder.