[Multiple synchronous small intestine carcinomas. A rare case observation].

We report on the extremely rare finding of a multiple synchronous, partly free perforated carcinoma of the small bowel. The histopathological diagnosis was a small-cell carcinoma of the small bowel. Malignant lymphoma, neuroendocrine or neuroendothelial malignancies were excluded immunohistochemically. In light of the intraoperative finding and the postoperative diagnostics, we are of the opinion that it is a primary multiple synchronous carcinoma of the small bowel.