<unk> , refers to a lymphangiosarcoma, a rare complication that forms as a result of chronic, long-standing lymphedema. Although it most commonly refers to malignancies associated with chronic lymphedema resulting from mastectomy and/or radiotherapy for breast cancer, it may also describe lymphangiosarcomas that result from congenital and other causes of chronic secondary lymphedema. Lymphangiosarcoma arising from cancer-related lymphedema has become much less common with better surgical techniques, radiation therapy, and conservative treatment. The prognosis, even with wide surgical excision and subsequent radiotherapy, is poor.
Stewart–Treves syndrome
Johnson–McMillin syndrome
Degos disease
Chandler's disease
Cruveilhier–Baumgarten disease
Nezelof syndrome
Van Den Bosch syndrome
Van Wyk and Grumbach syndrome