A small bowel fistula extending into a metastatic tumour due to lung carcinoma.

We report the case of a 63-year-old man who presented with an abdominal mass that was subsequently found to be a metastasis of small cell lung carcinoma into which the small bowel had fistulized. After a detailed diagnostic workup, the involved segment of the small bowel was resected along with the mass. The patient is alive and well six months after surgery. Lung carcinoma metastases to the bowel and mesentery are rare. Resection of the metastatic mass gives the best palliation and improves short-term survival.