along the tendon, leading to the development of angiofibroblastic hyperplasia.12,13 The components of vascular and fibroblastic elements will replace the normal tendon, including the degeneration of mucous membrane and the infiltration of connective tissue. In the initial stages, inflammation is considered a primary factor in the development of ME,11 and the term "inflammation" continues to be used to indicate the presence of inflammation. However, histopathological analysis reveals that the disease mechanism is associated with degeneration.