system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What are the different types of cancers?


assistant
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