Moreover, the sensitivity of Choline PET/CT in detecting locally recurrent PCa is low, notably in the case of low PSA values (Krause et al., 2008; Giovacchini et al., 2013; Castellucci et al., 2009; Castellucci et al., 2011; Mamede et al., 2013). The gene discussed is KLK3; the disease is posterior cortical atrophy.