The value of cerebral angiography in the diagnosis of intracranial infections is presented, and the differential diagnosis of the various angiographic appearances in meningocerebral infections is discussed. Specific angiographic characteristics permitting the diagnosis of vasculitis, cerebritis, meningitis, brain abscess, and subdural and epidural fluid collections are correlated with known concepts of the pathological anatomy of these entities. Angiography is recommended in those infants known to have a meningocerebral infection who show signs of an increase in intracranial pressure or focal neurological dysfunction.