Table 2 Analogy of flat and papillary urothelial lesions of the ISUP/WHO system.

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

Degree of atypia

Papillary lesions

Flat lesions

None

Papilloma

Normal

Minimal

PUNLMP

Hyperplasia

Mild to moderate

Low-grade PUC

Dysplasia

Moderate to severe

High-grade PUC

CIS

Back to article page