Papillary urothelial neoplasm of low malignant potential

Papillary urothelial neoplasm of low malignant potential
It is a case from 45 years old , sex masculin with hematuria. Lesion was 1 cm , polypoid formation in lateral wall of bladder.
This lesion preferred  the lateral posterior wallsof bladder  and ureteric orifices. Rareis  associated with invasion or metastases.

Micro description: papillae with minimal architectural abnormalities. Minimal nuclear atypia, and  cell thickness of bladder

Reduced cytoplasmic clearing compared to normal urothelium bladder. The  epithelium  is thicker than papilloma.

Excellent prognosis when totally tumor is excised.