Figure 2:

(a) ThinPrep Pap showing binucleation with nuclear features, including enlargement, hyperchromasia, and contour irregularities. (b) ThinPrep Pap with thick clumps of koilocytes of varying sizes and clear halos and binucleation. The sketch on right compares nuclear area (size) of LSIL nucleus against the area of intermediate cell nucleus “internal ruler.”