Severe neurological complications of ulcerative colitis.

A 37 year old man presented with a 15 year history of ulcerative colitis. On examination he had weakness of the right arm, slurred speech and progressive confusion, followed by a rapid deterioration of consciousness and motor functions resulting in coma, tetraparesis and bilateral Babinski responses. Magnetic resonance imaging of the brain and spinal cord revealed multiple hyper- and hypointense white matter lesions. Clinical symptoms, history and neuroradiological findings led to the diagnosis of an ulcerative colitis-associated CNS disorder. An autoimmune vasculitic process may have played an important pathophysiological role, considering the vasculitic changes observed by skin biopsy as well as the rapid clinical improvement following immunosuppressive therapy with corticosteroids and azathioprine. During a follow up period of more than one year we observed continuous and complete recovery of neurologic symptoms.