Exhaustive preoperative staging increases survival in resected adrenal oligometastatic non-small-cell lung cancer: a multicentre study.

OBJECTIVES: Adrenal oligometastatic non-small-cell lung cancer is rare, and surgical management remains controversial.

METHODS: We performed a multicentre, retrospective study from January 2004 to December 2014. The main objective was to evaluate survival in patients who had undergone adrenalectomy after resection of primary lung cancer. Secondary objectives were to determine prognostic, survival and recurrence factors.

RESULTS: Fifty-nine patients were included. Forty-six patients (78%) were men. The median age was 58 years [39-75 years]. Twenty-six cases (44%) showed synchronous presentation, and 33 cases (56%) had a metachronous presentation. The median time to onset of metastasis was 18.3 months [6-105 months]. The 5-year overall survival rate was 59%; the median survival time was 77 months [0.6-123 months]. A recurrence was observed in 70% of the population. Mediastinal lymph node invasion (P = 0.035) is a detrimental prognostic factor of survival.

CONCLUSIONS: After exhaustive staging, patients with adrenal oligometastatic non-small-cell lung cancer benefit from bifocal surgery.