PURPOSE To determine whether there is a physiologic explanation for the predisposition of patients with certain angiographic characteristics to symptoms of hemorrhage and steal. METHODS Superselective transcatheter feeding arterial pressure and mean arterial pressure measurements were obtained before embolotherapy in 32 patients with cerebral arteriovenous malformations. Pressures were correl...

BACKGROUND Very little documentation of spontaneous regression of an angiomatous retinal lesion in v. Hippel-Lindau disease (VHL) exists. It is commonly believed that a spontaneous change of hemangiomas into fibrotic lesions occurred. PATIENTS/METHODS Follow-up examinations of four patients with VHL in the Freiburg VHL study were carried out. RESULTS A 16-year-old girl revealed a vascular l...