“…Despite a rising incidence of CAC in many countries, [1][2][3][4] there is emerging evidence that cytologic detection of the precursor lesion, adenocarcinoma in situ (AIS), may reduce the incidence of and mortality from CAC. 1,[5][6][7][8][9][10] Although many countries have replaced conventional cervical cytology with liquid-based cytology (LBC), currently in Australia, LBC, mostly ThinPrep (TP), is used as an optional adjunctive test to the conventional Papanicolaou (Pap) smear (PS). Although this may appear cumbersome, one advantage is that it gives us the opportunity to compare paired samples and, consequently, to learn how to recognize the corresponding morphologic appearances on TP slides.…”