Pitfalls in gynecological cytology - review of the common and less frequent entities in Pap test.

The awareness of pitfalls in cervical cytology is important for cytopathologists and clinicians to avoid future errors. Review of Pap tests with erroneous diagnosis is important for quality control in cytology laboratory, and it must be considered as educational and experience building procedure. Cytopathologist should not pull back in significant diagnoses, especially in HPV negative cases.