[Primary tumors of the small intestine (author's transl)].

From 1969 to 1979, 19 patients were operated for tumors of the small intestine: 8 were benign and 11 malignant. Of the benign, mesenchymal tumors predominated, the malignant tumors were epithelial. The difficulty of diagnostic confirmation and its effect of the prognosis of the disease are discussed with reference to the literature.