In another type of systemic scleroderma, known as diffuse cutaneous systemic scleroderma, the fibrosis affects large areas of skin, including the torso and the upper arms and legs, and often involves internal organs.n the third type of systemic scleroderma, called systemic sclerosis sine scleroderma (sine means without in Latin), fibrosis affects one or more internal organs but not the skin.
The UCL, or ulnar collateral. ligament, is located in. the middle thumb joint, and provides support to. the thumb during grip. and pinch. It is the most. common ligament injury.
146 Conditions peculiar to the hands. Ulnar nerve The ulnar nerve innervates the skin on. the anterior and posterior surfaces of the little fin-. ger and the ulnar side of the ring finger, the skin. over the hypothenar eminence,and a similar strip of. skin posteriorly. The ulnar nerve sometimes inner-.