Fig. 2.

Measurement Protocol: a freshly removed prostate specimen (a) was inked (b); then bi-valved in a coronal plane (c). After identifying benign peripheral zone tissue (nPZ), benign prostatic hyperplasia (BPH), and suspicious lesions for PCa, optical measurements were performed on the selected regions (d). Then, the measured regions were black-inked, removed, and sent for pathology confirmation (e), where black markings represent the removed tissue pieces that were optically measured and then sent for pathology analysis.