to evaluate the distribution and density of epidermal growth factor ( egf ) receptors ( egf-rs ) on urothelium , immunohistological studies using a monoclonal antibody to the binding portion of the human egf-r were performed on frozen specimens of normal urothelium ( n = 20 ) , urothelium from patients with nonurothelial urological malignancies ( n = 15 ) and inflammatory diseases ( n = 8 ) , low grade superficial transitional cell carcinomas ( tcc ) ( n = 13 ) , high grade superficial or invasive tcc ( n = 28 ) , and endoscopically normal appearing urothelium from patients with low grade superficial ( n = 5 ) or high grade ( n = 21 ) tcc elsewhere in the bladder ( or ipsilateral renal pelvis/ureter ) .
C0227598
urothelium
C0279680
tcc