Squamous Cell Carcinoma in a Calyceal Diverticulum Detected by Percutaneous Nephroscopic Biopsy

Figure 4

Histopathological examination. (a) An area of verrucous squamous cell carcinoma, connected to a high-grade squamous cell carcinoma, identified on the inner surface of the calyceal diverticulum. (b) Under magnification, the high-grade squamous cell carcinoma was shown to invade the renal parenchyma.

(a)

(b)