Type of Preparation: ThinPrep/ LBP Magnification: High Clinical History: Anal-rectal sample Interpretation: NILM: Negative for intraepithelial lesion or malignancy Explanatory Notes: Normal rectal columnar cells are present. Follow-up: Just as with cervical cytology, the presence or absence of rectal columnar cells is indicated on an anal Pap report as a measure of specimen adequacy