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.
There are many potential causes of liver pain. Other symptoms may accompany liver pain. Liver pain and abdominal pain in general are sometimes confused with each other. For reference purposes on this site, all upper-right abdominal pain is considered as potentially being liver pain.