Heterogeneity in intracranial relapses after complete resection of lung adenocarcinoma: Distinct features of brain-only relapse versus synchronous extracranial relapse.

Among patients with brain relapse after resection of lung adenocarcinoma, patients with EGFR mutations might have intracranial relapse only without synchronous extracranial metastases. Further prospective studies are warranted to verify this.