Overall, ERG was rearranged in 23.2% (44/190) of Chinese PCa patients, of which 54.5% (24/44) demonstrated deletion of the 5′end of ERG. Interestingly, two out of these 24 cases demonstrated two copies of the 3′-ERG signals, suggesting the duplication of ERG rearrangement. Here, ERG is linked to posterior cortical atrophy.