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.
Gamekeeper's thumb (also known as skier's thumb or UCL tear) is a type of injury to the ulnar collateral ligament (UCL) of the thumb.The UCL is torn at (or in some cases even avulsed from) its insertion site into the proximal phalanx of the thumb in the vast majority (approximately 90%) of cases.This condition is commonly observed among gamekeepers and Scottish fowl hunters, as well as athletes (such as volleyballers).ymptoms and signs [edit]. Symptoms of gamekeeper's thumb are instability of the MCP joint of the thumb, accompanied by pain and weakness of the pinch grasp.