A cancer or tumour of the blood and/or lymphatic vessel walls. It usually appears as blue-violet to brownish skin blotches or lumps. Before the appearance of AIDS, it was rare in the developed world. AIDSassociated Kaposi’s sarcoma is much more aggressive than the earlier form of the disease and is associated with Human Herpes Virus 8.
Once a very rare disease in western countries, although more common in Africa, Kaposi’s sarcoma is now a feature of AIDS (see AIDS/HIV) – indeed, its increasing occurrence was one of the ?rst pointers to the development of AIDS. It is a condition in which malignant skin tumours develop, originating from the blood vessels. The tumours form purple lumps which customarily start on the feet and ankles, then spread up the legs and develop on the arm and hands. In AIDS the sarcoma appears in the respiratory tract and gut, causing serious bleeding. Radiotherapy normally cures mild cases of Kaposi’s sarcoma, but severely affected patients will need anti-cancer drugs to check the tumour’s growth.
A cancer of connective tissue, bone, cartilage, fat, muscle, nerve sheath, blood vessels or lymph system.... sarcoma
An uncommon but very malignant cancer of the bone in children and young adults, the condition was ?rst identi?ed as being di?erent from OSTEOSARCOMA by Dr J Ewing in 1921. It usually occurs in the limbs or pelvis and soon spreads to other parts of the body. Treatment is by RADIOTHERAPY and CYTOTOXIC drugs. Since the use of the latter, the number of patients who survive for ?ve years or more has much improved.... ewing’s sarcoma