Quiz: Sandy patch on cystoscopy

Apr 23, 2019

A 35-year-old male from Sudan was hospitalized with a right obstructing 1-cm ureteral stone seen on KUB. The KUB also revealed curvilinear calcification in the bladder wall. The patient was taken to the operating room for ureteroscopy and laser lithotripsy. During cystoscopy, a rim of calcification was seen along the right ureteric ridge. What is the diagnosis?

A 35-year-old male from Sudan was hospitalized with a right obstructing 1-cm ureteral stone seen on KUB. The KUB also revealed curvilinear calcification in the bladder wall. The patient was taken to the operating room for ureteroscopy and laser lithotripsy.

During cystoscopy, a rim of calcification was seen along the right ureteric ridge (figure 1a). A biopsy of this area was taken with the pathology shown in figure 1b.

 

 

What is the diagnosis?