[Primary intraventricular hemorrhage as a result of a bleeding arteriovenous malformation].

Primary intraventricular hemorrhage is very rare in adults and is even more infrequent in children. We present a 15-year-old girl who presented to the hospital because of sudden severe headache, vomiting and fever. Neurological examination only showed neck stiffness. A brain computed tomography showed blood in the ventricular system. Conventional angiography revealed an arteriovenous malformation originating in the right pericallosal artery branches. Gamma-knife radiosurgery was performed without relevant complications. A follow-up cerebral angiography showed disappearance of the arteriovenous malformation. When a primary intraventricular hemorrhage is detected in a young patient it is mandatory to rule out an underlying lesion such an arteriovenous malformation. Treatment options include surgery, interventional radiology and radiosurgery, alone or in combination.