P16 oncoprotein positive staining was found in 17/21 (80.9%) of well differentiated tumors, 10/18(55.6%) of moderately differentiated tumors and 1/6 (16.7%) of poorly differentiated tumors.

• P16在高、中、低分化粘液表皮样癌中的阳性表达率分别为80.；9%25(17／21)、55