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Lung cancer is usually diagnosed at an advanced stage and metastases are present in 50% of patients. Small bowel metastases from lung cancer are rare, being more frequent in patients with melanoma, uterine, ovarian, kidney or gastrointestinal cancer, or osteosarcoma. From November 1998 to August 2003, 740 cases of lung cancer (641 non-small-cell lung cancer and 99 neuroendocrine tumours) were diagnosed. We also observed 64 patients with malignant pleural mesothelioma and performed 23 pleuropneumonectomies. Over the same period we admitted 4 patients (one recurrent) with small bowel metastases, three from lung cancer and one from malignant mesothelioma. The clinical symptoms were bowel occlusion and intestinal bleeding. Radiological techniques such as small bowel enema and CT enteroclysis were used with positive results. In one patient with intestinal bleeding capsular endoscopy revealed a bleeding metastasis. All patients were operated on. Neither mortality nor morbidity were observed. All patients were discharged after a median stay of 10 days. One patient is still alive and disease-free 39 months after the first intestinal surgery for metastases. Intestinal metastases from lung cancer are rare and the diagnosis is often late. In some cases the clinical manifestations of the metastases are observed before those of the primitive tumour. However, in the presence of small bowel occlusion and intestinal bleeding of uncertain origin, clinical history-taking is very important and diagnostic procedures must be performed to exclude a secondary pathology.

The authors report a case of intralobar pulmonary sequestration diagnosed accidentally in a 64-year-old woman. The patient subsequently underwent surgery. The authors were prompted by this fairly rare case to describe and discuss its anatomopathological, clinical, diagnostic and therapeutic aspects.