Conventional Risk Stratification Fails to Predict Progression of Succinate Dehydrogenase-deficient Gastrointestinal Stromal Tumors: A Clinicopathologic Study of 76 Cases.

Abstract excerpt

Gastrointestinal stromal tumors (GISTs) that lack kinase mutations often show loss of function of the succinate dehydrogenase (SDH) complex, due to germline mutation or promoter hypermethylation. SDH-deficient GISTs are exclusive to the stomach and have a multinodular architecture. It has been suggested that conventional risk stratification criteria may not predict outcome for this group of tumors, although data...

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