PTEN and esophageal squamous cell carcinoma: Other genes deleted in ESCC are LRP1B (2q22.1–22.2), TNFRSF10A (8p21.3), PDE4D (5q12.1), PTPRD (9q24.1), FHIT (3q14.2), RB1 (13q14.2), PTEN (10q23.21), PIK3R1 (5q13.1), FAT1 (4q35.2), ZNF750 (17q25.3), CUL1 (7q36.1), CUL5 (11q22.3) and VGLL4/ATG7 (3p25.2) [29,31,33,35].