NCCN Guidelines for Patients
Stomach Cancer, Version 1.2016
1 Stomach cancer basics
• The stomach turns eaten food into a liquid.
• The wall of the stomach has four layers.
• Stomach cancer often starts in cells that line
the inside of the stomach wall and make
• Cancer cells form a tumor since they don’t
grow and die as normal cells do.
• Cancer cells can spread to other body parts
through lymph or blood.