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.
There are also two arteries (radial and ulnar) that supply blood to your hand. You can feel these on the palm-side of your wrist. The radial artery (nearer your thumb) is often felt to take your pulse. The ulnar artery on the opposite side of your wrist is much more difficult to feel.