In a study by Tringler et al p16 positivity in the uterine cervix was seen in 6.5% of normal squamous mucosa, 37.5% in ciliated columnar cells of endocervical glands, 30% of Nabothian cysts, and 100% in tubal metaplasia [9]. The gene discussed is CDKN2A; the disease is nabothian cyst.