Non-trophoblastic cancers are classified based on the tissue or organ of origin. Some of the major categories include:
Carcinomas: These arise from epithelial cells and include lung, breast, colorectal, and prostate cancers. Sarcomas: These originate from connective tissues such as bone, muscle, and fat. Lymphomas: These are cancers of the lymphatic system. Leukemias: These are cancers of the blood and bone marrow. Melanomas: These are cancers arising from melanocytes, the pigment-producing cells in the skin.