Fig. 3: Atypia of unknown significance. | Modern Pathology

Fig. 3: Atypia of unknown significance.

From: Flat intraurothelial lesions of the urinary bladder—do hyperplasia, dysplasia, and atypia of unknown significance need to exist as diagnostic entities? and how to handle in routine clinical practice

Fig. 3: Atypia of unknown significance.The alternative text for this image may have been generated using AI.

A–C Urothelial atypia is easily recognizable however the combined considerable degree of atypia and presence of inflammation make it difficult to determine if the cytologic change is neoplastic or reactive.

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