Figure 4From: Increased expression of the retinoic acid-metabolizing enzyme CYP26A1 during the progression of cervical squamous neoplasia and head and neck cancerCYP26A1 expression in head and neck carcinomas via tissue microarray analysis. CYP26A1 overexpression in primary carcinomas of the head and neck was demonstrated using 3 representative cases with strong CYP26A1 staining. The lower panel (×200) is a magnified view of the rectangular area in the upper panel image (×10) for each case.Back to article page