Figure 4.
Comparison of the HNE immunopositivity in the cytoplasm of squamous carcinoma cells and in non-malignant epithelial cells adjacent to the tumor depending on the clinical stage of the disease. a—significance to the healthy controls subjects; b—significance to the cancer cells of the stage III carcinoma specimens; c—significance to the non-malignant cells surrounding cancer tissue graded as stage I or II.