Among these reports, the elevated biomarkers included CA 19-9 (14 cases), CA 125 (5 cases), CEA (5 cases), CA 50 (1 case), CYFRA 21-1 (1 case), NSE (1 case), NCC-ST-439 (1 case), free normetanephrine (1 case), and sialyl Lewis X-i (SLX; 3 cases), which were all decreased to within the normal range after resection of the sequestrated lung tissues, regardless of the concomitant ovarian cyst, bronchogenic cyst or mycosis. This evidence concerns the gene CEACAM5 and bronchogenic cyst.