Small cell carcinoma of urinary bladder is differentiated from urothelial carcinoma by chromogranin expression, absence of CD44 variant 6 expression, a unique pattern of cytokeratin expression, and more intense γ‐enolase expressionKenneth A. Iczkowski, David G. Bostwick, William C. Allsbrook et al.|Histopathology|1999Cited by 60