Objective The expression of P16,P38,P53,and CyclinD1 in esophageal cancer was studied in order to provide evidence for early diagnosis of esophageal cancer. Methods Specimens were 123paraffin-embedded sections of esophageal carcinoma from patients who underwent surgical resection at the Fourth Hospital of Hebei Medical University.These paraffin-embedded sections were cut into 4-mm-thick pathology specimens and subjected to HE staining.The expression of P16,P38,P53,and CyclinD1 was detected immunohistochemic...