Clinical manifestations If the tumor occurs in the abdominal wall, it manifests as painless abdominal wall mass, hard, no pressure pain, slow growth, most patients can be found when the tumor diameter reaches several centimeters; a few delayed treatment, the tumor grows in a piecewise infiltration in all directions, resulting in a large area of abdominal wall rigidity, and if it occurs in other parts of the body, it can cause the corresponding compression symptoms and functional disorders. 1.It is mostly found in the abdominal wall muscle during pregnancy or menstruation, and can also occur in other parts of the transverse muscle. 2, the mass grows slowly, painless, hard, and the boundary with the surrounding tissue is unclear. Diagnosis According to the relationship between the site of clinical onset and tendon and pathological changes and other characteristics, the diagnosis is not difficult to determine, in the clinical need to differentiate from keloid, because the disease has the characteristics of infiltrative growth, should be differentiated from well-differentiated fibrosarcoma, the latter is generally faster growth, often with pseudo-coated membrane, soft texture, and most of the necrotic foci, the tumor cells are more abundant, the heterogeneity is more pronounced, and the nucleus has a mitotic image is common.