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Gastrointestinal Stromal Tumors (GISTs)

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Practical Medical Oncology Textbook

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Abstract

Gastrointestinal stromal tumors (GISTs) are a group of tumors that, over the past 15 years, has emerged from a poorly understood neoplasm to a well-defined tumor entity. GISTs are highly resistant to conventional chemotherapy and, in the past, were typically managed surgically.

Prior to the advent of the tyrosine kinase inhibitors (TKIs) like imatinib, there were few treatment options available to patients with advanced GIST, and their survival was generally of few months.

The discovery of activated KIT mutation GISTs has radically changed our knowledge about tumor biology. It represents not only a key diagnostic marker but also a clinically important therapeutic target, transforming GISTs from a chemotherapy-resistant disease to a model for molecular targeted therapy.

All these findings have resulted in significant improvements in median overall survival (OS) and in a greater number of treatment options for the patients.

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Incorvaia, L. et al. (2021). Gastrointestinal Stromal Tumors (GISTs). In: Russo, A., Peeters, M., Incorvaia, L., Rolfo, C. (eds) Practical Medical Oncology Textbook. UNIPA Springer Series. Springer, Cham. https://doi.org/10.1007/978-3-030-56051-5_59

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