Carcinoma is a malignant neoplasm of epithelial origin. It is a tumor that arises in the tissues that line the body?? organ like skin, brain, breast, prostate, urinary bladder or ureter.
Leukaemias are cancers of the blood or blood forming organs. Sarcoma are tumors that originate in mesodermal tissue like bone, connective tissue, muscle, cartilage or fat. Lymphomas affect the lymphatic system, a network of vessels and nodes that acts as the body?? filter.