[Benign duodenal lacunes and pseudolesions].

In 22 patients who shown filling defects in first and second duodenum, only 2 cases of benign tumors were detected by both radiology and endoscopy; the remaining cases were diagnosed as duodenitis and pseudolesions. In duodenum, the great rarity of benign tumors compared with frequency of pseudolesions doesn't allow evaluation of the accuracy of roentgen examinations. Some principles of differential diagnosis are exposed.