Gastrointestinal stromal tumor of the small intestine with lung metastasis.

Gastrointestinal stromal tumours (GISTs) represent 1% of primary gastrointestinal cancers. These tumors most frequently metastasise to the liver and peritoneum and rarely to the lungs. We report the case of a 79-year-old woman with gastrointestinal stromal tumor of the small intestine and pulmonary metastases. Contrast-enhanced computed tomography (CT) revealed a focal mass centered around the last intestinal loop associated with pulmonary bilateral masses. The diagnosis of gist of the small bowel was confirmed by histopathological and immunohistochemical analyses of bioptic material obtained from CT guided biopsy of pulmonary lesions. To the best of our knowledge, only few cases had been reported in medical literature as This mode of presentation is unusual, with computed tomography (CT) playing a significant role in the diagnosis and management.