#1401 ·
Dana Martin87 said:I honestly don't get this whole GIST thing. I was reading that it usually starts in the stomach, but it can also be in the colon, like what happened with my dad...
Look, let's break this down. What’s actually the distinction between a GIST located in the stomach versus a stomach tumor that has spread, or a GIST in the colon versus a standard colon cancer?
It all comes down to the cellular makeup. A GIST is a sarcoma, which originates from connective tissue, whereas a carcinoma grows from the epithelial cells of the organ itself. Because their cellular structures are fundamentally different—and because of where they sit in the body—they react completely differently to medication and radiation. You can't treat them the same way. Generally speaking, sarcomas don't respond to chemo or radiation nearly as effectively as carcinomas do. In most cases, you're looking at the best possible outcomes if the entire tumor can be successfully surgically removed.