523964.fig.004a
(a)
523964.fig.004b
(b)
Figure 4: (a) Intraluminal macroscopic view of cystectomy specimen. Recognition of one out of the two polypoid lesions of urinary mucosa (white arrow). (b) Microscopic view of the ulcerated surface of the polypoid lesion (H-E stain X 2.5).