This is a retrospective medical record abstraction to evaluate the patterns of care for Gastrointestinal stromal tumors (GIST) in the community setting. Patient demographics and characteristics along with the treatments received will be described. Investigators will establish the percentage of patients who undergo surgery, the percentage of patients who are treated with kinase inhibitors as well as in what setting (adjuvant or metastatic) as well as the duration of therapy. Physician information will also be collected to assess for differences in treatment based on physician or geographical differences.

Inclusion Criteria:

• Patients diagnosed with GIST based on ICD-9 code from January 2005 to present will be eligible. This will include current active patients as well as patients who have expired and have medical chart available.

Patients diagnosed with GIST based on ICD-9 code from January 2005 to present will be eligible. This will include current active patients as well as patients who have expired and have medical chart available. Estimate reviewing approximately 300 charts total.