Fig. 7

Azan stain in the bladder of WTBOO (a) and TGBOO (b). Photographs a and b are at ×20. Photographs a-a (indicated by small box in a) and b-b (indicated by small box in b) are enlarged at ×400. The 0.5 (width) × 0.5 cm (height) sample of the posterior bladder wall was embedded in paraffin. Paraffin blocks were cross-sectioned in 5 μm thickness. The upper side is the mucosal layer. The bladder walls in WTBOO and TGBOO were thickened by hypertrophied smooth muscles and fibrosis