Type of Preparation: Conventional Magnification: High Adequacy Description: Air Drying Artifact Cytomorphologic Criteria: Note pale, enlarged nuclei with indistinct nuclear features. Explanatory Notes: Air drying causes cells to flatten out on the slide instead of being fixed in a more round or 3-dimensional configuration. Extensive air drying may mean that a specimen is unsatisfactory (if >75% of cells show air drying). If less extensive, air drying may be mentioned as a quality indicator. Follow-up: Note no epithelial abnormality is identified here.