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.
Pay Now. When an acute sprain or tear on the ulnar collateral ligament (UCL) on the ulnar side of the meta-carpal-phalangeal (MCP) joint of the thumb occurs, it is called a UCL injury.CL injuries are commonly caused by injury or trauma in which the thumb is bent away from the hand at the MCP joint. This can happen in sports like skiing or hockey, or in any situation in which a fall is landed on an outstretched hand.