What Is Tumoral Calcinosis?

Superficial soft tissue tumorous ulcers are localized defects or ulcers of skin or mucosal surface tissues (such as fibers, fat, smooth muscle, blood vessels, lymphatic vessels, etc.) caused by subcutaneous tissue tumors of soft tissues on the body surface. Benign tumors of superficial soft tissues are common in lipomas, fibroids, sebaceous cysts, epidermal cysts, and dermoid cysts. Malignant tumors include fibrosarcoma, liposarcoma, rhabdomyosarcoma, synovial sarcoma, and melanoma. Malignant tumors are more likely to develop ulcers, but some benign tumors, which tend to be low-grade, can also develop ulcers.