PMC7585673_01
Photomicrograph of the NA in the urinary bladder at the time of second transplantation, showing tubular structures resembling renal medullary tubules.
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fig1
The histopathology showed features of NA (Figure 1).
Cystoscopic appearance of NA 5 years after the second transplantation; multiple friable red and white polypoid lesions in the bladder trigone and the roof. Histopathology showed no malignant changes.
CRIT2020-8831966.002.jpg
PMC7585673_01_CRIT2020-8831966.002.jpg
fig2
Recent cystoscopy revealed mucosal polypoid lesions (Figure 2) which histologically showed features of NA.