We also observed that pulmonary metastasis was more common in HCC with high MIM-B expression levels (28/40, 70%) than in HCC with lower MIM-B expression levels (12/40, 30%; P = 0.039) and in HCC with high caveolin-1 expression levels (32/40, 80%) than in HCC with lowers caveolin-1 expression levels (8/40, 20%; P = 0.002). The gene discussed is MTSS1; the disease is hepatocellular carcinoma.