Linear Scleroderma. Scleroderma is a rare autoimmune disease in which an overproduction of abnormal collagen causes normal tissues to be replaced with thick, dense scar tissue that can affect underlying bones and muscles if left untreated.
Liver pain. Liver pain is felt in the upper right area of the abdomen, just below the ribs. Usually, it is a dull, vague pain though it can sometimes be quite severe and may cause a backache. Sometimes people perceive it as pain in the right shoulder.
Located in the RUQ, the liver is the largest solid organ in the body. It has a capsule with many nerve endings located along the surface. Conditions that stretch the liver capsule often trigger pain. Liver inflammation, or hepatitis, can develop from numerous causes.