[The monolayer technique: evolution or revolution in cervico-uterine cytology]

The Pap's smear technique, originally described by Papanicolaou is widely used to screen for cervical cancer. The new, recently introduced thin layer preparations also termed monolayer or liquid-based cytology preparations has prompted much debate among pathologists. A new technique always raises some doubt, especially concerning the economic implications. We present here a technical not providing helpful information and a certain amount of clarification.