Nuclear chromatin is dusty or finely granular (salt and pepper) without nucleoli.
Multinucleation (>2, <50) may be seen as a reactive change, along with small red nucleoli.
Deep transitional cells
Same as superficial cells, except smaller with denser blue cytoplasm (image B).
Includes intermediate and basal cells, which are cytologically similar.
Increased numbers seen with: instrumentation/catheterization; calculi; and inflammatory/neoplastic conditions.