Gastrointestinal stromal tumor: Computed tomography findings and pathologic correlation

Gastrointestinal stromal tumors (GIST) are rare mesenchymal neoplasms of the gastrointestinal tract that arise from Cajal cells. They are characterized by the expression of a growth factor receptor with tyrosine kinase activity termed c-kit. Use of c-kit enabled the histological characterization of these tumors, the development of a specific treatment which radically transformed the prognosis of this illness, and the accentuation of the role of radiology for these tumors. We report an illustrated observation of duodenal GIST which presented as an abdominal mass with fever. © 2008. Elsevier Masson SAS.