Diagnosis of gastrointestinal stromal tumors from minute specimens: cytomorphology, immunohistochemistry, and molecular diagnostic findings.

Abstract excerpt

Gastrointestinal stromal tumors (GIST) are the most common mesenchymal neoplasm arising from the gastrointestinal tract. Workup of these lesions includes morphologic study and immunohistochemical and often molecular diagnostic analysis. Historically, these neoplasms had been included under a number of diagnostic categories including leiomyoma, leiomyosarcoma, schwannoma, and leiomyoblastoma. The lesions that were...

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