FOLH1 and posterior cortical atrophy: These PCa-specific markers were detected in a greater number of patient samples from the PCa patient group compared with the BPH group (PCA3: 7/15 in PCa patient and 2/16 in BPH patient; PSMA: 9/15 in PCa patient and 5/16 in BPH patient), suggesting PCa samples contain higher numbers of PCa cells.