Angiographic findings with an intracranial gumma.

The case of a syphilitic gumma in the cerebellopontine angle is reported. The angiographic appearance of neurosyphilis is similar to that of cerebral inflammatory processes of all varieties. The hypervascularity of the blush shown on angiography is due to hyperemia surrounding the focal necrosis. Vasoconstriction and dilatation may be seen with meningovascular syphilis and gummata. This case showed a focal hypervascularized lesion unlike the avascular lesions described in the textbooks.