instruction: What are the different types of cancers?
response: Cancers are classified in two ways: Histological type, or the type of tissue in which the cancer originated, and by primary site, or the location in the body where the cancer first developed.
  
  From a histological standpoint, there are hundreds of different cancers, which are grouped into six major categories: 
  1. Carcinoma
  2. Sarcoma
  3. Myeloma
  4. Leukemia
  5. Lymphoma
  6. Mixed Types