BACKGROUND: Human papillomavirus (HPV) infection in atrophic smears can be
misleading and may produce the diagnosis of cervical intraepithelial neopla
sia.
CASE: A routine cervical smear in a 62-year-old female revealed an atrophic
smear with nuclear changes suggestive of a high grade squamous intraepithe
lial lesion (HSIL). An Estrogen cream for topical vaginal use was prescribe
d. A new smear was collected seven days later and revealed koilocytosis but
no evidence of HSIL.
CONCLUSION: Koilocytosis is a cellular finding of mature epithelial cells.
The use of estrogen produces maturation of HPV-infected basal cells, allowi
ng a correct diagnosis of this disease In patients with atrophic smears.