Differentiating Nonfunctional Paraganglioma of the Bladder from Urothelial Carcinoma of the Bladder: Pitfalls and Breakthroughs

Figure 1

Cystoscopy of NPB and UCB. (a) A submucosal NPB with hypervascular spherical pedunculated solid mass covered with glossy mucosa. (b) An intramural NBP with hemispherical bulged mass with a broad base. (c) An intramural NPB with severe hemorrhage and obscure profile. (d) A papillary non-muscle-invasive UCB with pedicle. (e) A solid muscle-invasive UCB with hemorrhage, necrosis, and calcification. NPB = nonfunctional paraganglioma of the bladder; UCB = urothelial carcinoma of the bladder.