Fig. 2
From: The papilla as a biomarker in the molecular era of bladder oncology
Papillary urothelial lesion (H&E; 10x). It is defined by the presence of a fibrovascular core, which is depicted transversally in the center of the figure, and longitudinally in the right side. It is a low grade well differentiated lesion, with relatively uniform cytology and maintenance of polarity towards the basement membrane