<prompt> Koilocytes with perinuclear halo on pap smear is pathognomic of?HPV infectionMetaplasiaDysplasiaBacterial vaginosis  <response>: ANSWER: A HPV infectionREF: Shaws Gynecology 13th ed p- 78, The pap test by Richard M. DeMay page 49-50Koilocytes, dyskeratocytes, macrocytes, etc. are some of the cytologic findings that are characteristic of condylomas HPV. Koilocytes with perinuclear halo is pathognomonic of HPV infectionConditionType of cellEstrogen dominated uterusNormal cornified cellsProgesterone dominated uterusIntermediate cellspregnancyIntermediate cells , Navicular cellsmenopausalBasal, parabasalHPVKoilocytes, dyskeratocytes, macrocytes with perinuclear halo. 