Rare Occurrence of a Poorly Differentiated Neuroendocrine Tumor of the Bladder

Figure 2

(a) Dark tumor cells fill stroma, splaying pink smooth muscle bands to the left (H&E, 100x). (b) Tumor nuclei are irregular, with scant cytoplasm, with some showing spots of nuclear clearing suggestive of salt and pepper, with some tumor cells juxtaposed to suggest molding, and with many pyknotic nuclei, indicative of a rapidly growing tumor.

(a)

(b)