Williamson Williamson SR SR Zhang Zhang S S Yao Yao JL JL ERG-TMPRSS2 rearrangement is shared by concurrent prostatic adenocarcinoma and prostatic small cell carcinoma and absent in small cell carcinoma of the urinary bladder: evidence supporting monoclonal origin ERG-TMPRSS2 rearrangement is shared by concurrent prostatic adenocarcinoma and prostatic small cell carcinoma and absent in small cell carcinoma of the urinary bladder: evidence supporting monoclonal origin Mod Pathol Mod Pathol 2011 2011 24 24 1120 1120 1127 1127 supplied-pmid 21499238? This evidence concerns the gene ERG and urinary bladder small cell neuroendocrine carcinoma.