TCL1b was positively stained in 25 of 43 (58.1%) head and neck cancer types, 32 of 67 (47.8%) esophagus and gastric cancer types, 8 of 27 (29.7%) liver, bile duct and pancreas, and finally in 4 of 9 (44.4%) lung cancer types. This evidence concerns the gene TCL1B and head and neck cancer.