Type of Preparation: ThinPrep/ LBP Magnification: Medium Interpretation: NILM: Squamous Metaplasia Cytomorphologic Criteria: Rounded up cells with somewhat higher N/C ratio but smooth nuclear contours and even distribution of chromatin. Explanatory Notes: Squamous metaplastic cells round up in liquid based preparations. Instances in which there is a higher N/C ratio (>50%) in conjunction with hyperchromasia and/or nuclear contour irregularities such as notching or grooving could prompt the consideration of HSIL or ASC-H.