PMC7401980_01
Axial view of CT scan showing a bladder mass (blue arrow in Figure 1A) on the posterior wall (A) and calcification (blue arrow in Figure 1B) on the posterior bladder wall at the resection site (B).
bladder-7-1-e41-g001.jpg
PMC7401980_01_bladder-7-1-e41-g001.jpg
fig001
On follow-up computed tomography (CT) scan of the abdomen and pelvis a year later, he was found to have a bladder mass (Fig. 1). TCC. Three weeks later, a follow-up CT scan of the abdomen and pelvis was performed for routine follow-up of the rectal cancer; this scan incidentally detected calcification of the bladder wall at the surgical resection site (Fig. 1).
Cystoscopy revealed extensive whitish calcification of the bladder wall, especially at the previous surgical resection site.
bladder-7-1-e41-g002.jpg
PMC7401980_01_bladder-7-1-e41-g002.jpg
fig002
Extensive stone-like, whitish calcification of the bladder wall at the surgical resection site was found (Fig. 2), not merely slough or soft tissue material.
Histopathology images of resected bladder calcification areas.
A. Concretions forming large solid islands in a background of fibrosis and inflammation (HE stain, 20x). B. Large sheet-like area of foreign material/concretions (upper field), with a multinucleated giant cell (heavy arrow) and two small concentric concretions (thin arrows) in the foreground (HE stain, 40x).
bladder-7-1-e41-g003.jpg
PMC7401980_01_bladder-7-1-e41-g003.jpg
fig003
Histology (Fig. 3) revealed chronic inflammation of urothelium and fragments of refractile, hard-edged material which was found to be made up of calcium phosphate.