Gastrointestinal Stromal Tumor

Stages of GIST

Stages of GIST

There are 4 stages of GIST. To determine the cancer's stage, doctors use 4 pieces of information:

  • Where the tumor started
  • The size of the tumor
  • If and where the tumor has spread
  • The mitotic rate (how fast the cancer cells are growing and dividing)

For GIST that starts in the stomach or omentum (a layer of fatty tissue over the organs in the abdomen):