Kris... cancers have certain cell structure characteristics closely related to each other.
This helped me understand:
Solid tumors vs. liquid tumors:
Solid tumors refer to a solid mass of cancer cells that grow in organ systems. It can occur anywhere in the body.
In adults we see two types of solid tumors: epithelial tumors and sarcomas. Epithelial tumors or carcinomas occur in the lining (epithelium) of the outside or inside of the organ.
The digestive system, from mouth to anus, is lined all the way down with an epithelium therefore, an epithelial tumor can occur anywhere along that lining meaning that a person could present with mouth cancer, stomach cancer, esophageal cancer, anal cancer or, bile duct cancer.
On the other hand, Sarcomas, or “connective tissue occur in the tissue that keeps the organs together. That is muscles, tendons, fat, nerves and other tissues that connect, support or surround structures and organs in the body.
Liquid tumors occur in the blood, lymph nodes or bone marrow. For example: leukemia, myeloma, and lymphoma all are liquid tumors.
THIS INFORMATION IS NOT INTENDED NOR IMPLIED TO BE A SUBSTITUTE FOR PROFESSIONAL MEDICAL ADVICE. YOU SHOULD ALWAYS SEEK THE ADVICE OF YOUR PHYSICIAN OR OTHER QUALIFIED HEALTH CARE PROVIDER