PMC8337129_01
Whitish plaque extended near the left ureteric orifice without interesting it.
CRIU2021-9970711.001.jpg
PMC8337129_01_CRIU2021-9970711.001.jpg
fig1
It extended near the left ureteric orifice without interesting it (Figure 1).
Right orifice was completely spared by plaques.
CRIU2021-9970711.002.jpg
PMC8337129_01_CRIU2021-9970711.002.jpg
fig2
Right orifice was completely spared (Figure 2).
The mucosa underneath the plaques was inflamed.
CRIU2021-9970711.003.jpg
PMC8337129_01_CRIU2021-9970711.003.jpg
fig3
The mucosa underneath the plaques was inflamed (Figure 3).
Replacement of the urothelium with stratified keratinized squamous epithelium.
CRIU2021-9970711.004.jpg
PMC8337129_01_CRIU2021-9970711.004.jpg
fig4
The histology of the affected area revealed keratinizing squamous metaplasia and focal low grade epithelial dysplasia (Figure 4).