Fig. 4

a Suspicious lesion found in the transitional zone (TZ). MRI examination shows an elliptical focus of homogenous decreased T2 signal (A; axial T2w), increased DWI signal (B; axial DWI b-800), hypervascularity (C; axial DCE-MRI), and reduced signal on ADC (D; axial ADC map), within the anterior transition zone. b Suspicious lesion in peripheral zone (PZ), MRI examination shows an elliptical focus of decreased T2 signal (A; axial T2w), increased DWI signal (B; axial DWI b-800), hypervascularity (C; axial DCE-MRI), and reduced signal on ADC (D; axial ADC map), within the right dorsolateral peripheral zone