Image Description
Papillary urothelial neoplasm of low malignant potential (PUNLMP) is a lesion in which the papillary fronds are lined by thickened urothelium lacking cytologic features of malignancy. The histologic appearance is similar to papilloma except for urothelial thickening. Seven to ten layers of urothelial cells with orderly appearance line the papillary fronds in this image.