Novel perspectives on gastrointestinal stromal tumors (GISTs).

Authors: Mastalier Manolescu BS, Popp CG, Popescu V, Andraş D, Zurac SA, Berceanu C, Petca AT Abstract Since they were described, gastrointestinal stromal tumors (GISTs) are, for pathologists and not only for them, a subject of controversy regarding histological origin, differentiation, nomenclature, malignant potential and prognosis. Before 1998, there were no certainties that GISTs were fundamentally different from other types of abdominal cancers in the big family of mesenchymal tumors. Before the discovery of KIT gene mutations, GISTs were most often classified as leiomyoma, leiomyosarcoma, leiomyoblastoma, and gastrointestinal autonomic nerve tumor. When a tumor is discovered, the first data obtained are initially assessed by one or more imaging tests, such as an ultrasound, ...

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