[Metachronous tumor of the small intestine--rare cause of ileus in a patient after resection of colon cancer].

Neoplastic metastases in the small intestine are rare--only 2% of the metastases are localized in the small intestine. It is important to remember that colorectal metastases are the most frequent, though metachronous cancer of the small intestine is the rare cause of ileus or bleeding in patients who underwent resection of the colorectal cancer. The challenge is to select among those patients, the ones with metachronous tumor in the other parts of the small and large bowel. The diagnostics in these situations is often difficult and only the operative management is an optimal way of treatment. We present the case of the patient with metachronous cancer of the small intestine after the sigmoid resection and the diagnostic difficulties concerned.