Authors: Gilberto Valdez Romero, Gustavo Adolfo Hernández Valdez, Adriana Dolores Garcia Romero, José Miguel Valdez Lopez, Eduardo Sáenz F, Ramon Hernández G, Manuel Azuara F.
Gastrointestinal stromal tumors (GIST) are the most common mesenchymal neoplasms, accounting for 1% to 2% of all malignancies of the digestive tract. Gastrointestinal stromal tumors are rare mesenchymal tumors (0.1% to 3% of all malignant gastrointestinal tumors) that originate within the interstitial cells of Cajal. We present a case of an 83-yearold patient with melena and hematochezia of one week's duration with hemodynamic instability. Complete resection with laparotomy and embolization of the 5 x 3.5 cm GIST was performed. The histopathology report showed spindle cells, a low mitotic index and the immunohistochemistry report: DOG-1+/CD117+/ H.CALDESMON + FOCAL. Treatment with imatinib is started. In this case report we describe the clinical presentation, diagnosis and treatment of gastric stromal tumor.
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