Publications in the scientific literature are controversial in regard to the clinical significance of intracerebral venous angiomas. The present study of 11 patients with venous angiomas underscores the clinical importance of these lesions as potential causes of cerebral hemorrhage and obstructive hydrocephalus. The clinical and radiographic manifestations in 9 of these 11 patients correlated well. In cases of venous angiomas, the venous phase of angiography must be carefully scrutinized, particularly in patients with subarachnoid or intracerebral hemorrhage. Some diagnostic problems related to the angiography of venous angiomas are discussed.