Carotid angiograms in primary angiitis of the central nervous system

Left panel: An anteroposterior view of a right carotid angiogram in a patient with primary angiitis of the central nervous system (PACNS) reveals focal narrowing of multiple vessels in both the anterior and posterior systems. Right panel: A lateral view of a right carotid angiogram in PACNS demonstrates beading and multiple irregularities both proximally and distally.