M35: Other systemic involvement of connective tissue

M35.4: Diffuse (eosinophilic) fasciitis

There is connective tissue in many parts of the body. For example, there is connective tissue in the lower layers of the skin. There is also connective tissue around each muscle.

With this disorder, the connective tissue in the skin and around the muscles becomes inflamed. The inflammation can cause various symptoms. The skin can become red and swollen, for example. The muscles and skin may also be painful. The skin can be taut and hard in the affected places. This disorder can particularly affect the arms and legs.