Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal malignancies of the digestive tract. We present the case of a 61-year-old male patient liver metastasis of a GIST with primary location at the level of sigmoid colon. Like in the majority of cases, the symptomatology in this patient has long been faint and when it became manifest, it was nonspecific. Imagery wise, the computer tomography (CT) scan was the most efficient, showing the origin of the tumor from large bowel, its dimensions, as well as the relations with the other abdominal viscera and the liver metastasis. Surgery in this patient was en-bloc, according to the principles of GIST and for the metastasis he followed treatment with Imatinib. The histological aspect is characterized by a proliferation of spindle cells positive for CD117 and CD34. Despite complete microscopic resection, the exhibit of liver metastasis remains an important relapse factor.
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