Figure 1.

Patients with surgically treated isolated hepatic metastatic neuroendocrine tumours (NET) have very good long-term overall survival. In addition, the few patients with unknown primaries did extremely well after surgery. However, primary lesions in the thorax (lung and thymus) did strikingly poorly after resection. These small numbers do not permit accurate generalizations as to the cause of this phenomenon. As deaths are from any cause in the overall survival analysis, it is possible that the primary resection (i.e. lung resection) contributed to long-term morbidity and mortality