[Examination of a relapsing pattern of cases of completely resected non-small cell lung cancer].

PURPOSE: The purpose of this research was to understand the clinical discovery of a relapse, relapse time, and the presentation of the first relapse of non-small cell lung cancer(NSCLC)by examining cases of relapse after complete resection of NSCLC. Objective and method. Cases of relapse after complete resection of NSCLC in our hospital were examined. RESULTS: Fifteen cases were evaluated. In half of these cases, relapse was discovered owing to increased tumor marker values. Of the patients, 60%had a relapse within 2 years after resection and 20%had a relapse 5 years after resection. The first relapse was a local recurrence in 9 cases, lung metastasis in 5 cases, and distant metastasis outside the thoracic cavity in 3 cases. CONCLUSION: The effectiveness of the tumor marker as a diagnostic parameter of relapse in NSCLC was demonstrated. Discovering distant metastases at the early postoperative period and relapse 5 years after resection are important.