SCHLAP1 and posterior cortical atrophy: In a ROC analysis, both EPCATs showed high specificity and limited sensitivity in distinguishing cancerous samples when used individually (28.61% PCa samples positive, AUC = 0.66 for EPCAT2F176/SChLAP1 and 28.01% PCa samples positive, AUC = 0.65 for EPCAT4R966).