label: Succinate Dehydrogenase-Deficient Gastrointestinal Stromal Tumor
label_lc: succinate dehydrogenase-deficient gastrointestinal stromal tumor
description: A gastrointestinal stromal tumor characterized by the presence of mutations in the SDH genes and absence of mutations in the KIT and PDGFRA genes. It has an epithelioid morphology and a multinodular growth pattern.