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Gastrointestinal Stromal Tumor (GIST) Overview

  • Gastrointestinal stromal tumor (GIST) is a type of tumor that usually begins in cells in the wall of the gastrointestinal tract. It can be benign or malignant. Learn about gastrointestinal stromal tumor and find information on how we support and care for people with GIST before, during, and after treatment.


  • Les was diagnosed with GIST (gastrointestinal stromal tumor) more than 20 years ago. After several surgeries, his cancer returned and surgery was no longer an option. Les entered a clinical trial for a targeted therapy and after 14 years on the now FDA-approved drug called Gleevec, he continues to enjoy his grandchildren and fishing.

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