The results showed a double ALK fusion, EML6 exon1-ALK exon20, and FBXO11 exon1-ALK exon20...The immunohistochemistry of ALK detection was 2+ (Fig. 1)...Crizotinib 250 mg twice daily was administered orally, and 1 month later, imaging re-examination revealed that the left pleural effusion had disappeared and the right hilar lymph node had decreased. Another 2 months later, the tumor continued to shrink (1.9 × 0.8 cm) (Fig. 2).