Taste and smell disturbances in patients with gastrointestinal stromal tumors using tyrosine-kinase inhibitors.

Interventions: Patients will be interviewed by phone about taste alterations. Information about the background of the patients, including gender, age and type and treatment of the GIST, will be collected from the patients electronic file. Primary outcome(s): What is the prevalence of taste and smell disturbances in GIST patients using TKIs? Study Design: N/A: single arm study, Open (masking not used), N/A , unknown, Other