Palmar arteriography in acronecrosis.

Palmar arteriography in patients with acronecrosis complicating collagen vascular disease demonstrated multiple occlusions and stenoses which were most severe in the proper digital arteries. Involvement was prevalent at points of manual stress, i.e., adjacent to metacarpal-phalangeal and interphalangeal joints. An additional observation was the presence of incomplete superficial and deep palmar arches in all instances, a finding which diametrically contrasts with anatomical studies purporting to demonstrate complete palmar arches in 80% of the normal population.