Copyright ©2010 Baishideng Publishing Group Co.
World J Radiol. May 28, 2010; 2(5): 180-187
Published online May 28, 2010. doi: 10.4329/wjr.v2.i5.180
Figure 1
Figure 1 Magnetic resonance (MR) images demonstrating zonal anatomy of prostate gland. A: Axial T2-weighted (T2W) MR image depicts the central gland and peripheral zone (PZ). Central gland is hypointense compared to hyperintense PZ; B. Coronal T2W MR image shows hyperintense PZ and hypointense central gland.
Figure 2
Figure 2 Axial T2W MR image. A: Multiple, well defined hyperintense glandular benign prostatic hyperplasia (BPH) nodules in central gland (arrows); B: Well defined, amorphous, hypointense TZ tumor (arrows); C: Hypointense stromal BPH nodule in the right transition zone (TZ) (arrow); D: Hypointense TZ tumor with extracapsular extension (arrows).
Figure 3
Figure 3 Tumor in the left mid prostate gland demonstrated by MR. A: Axial T2W image shows ill defined, amorphous, hypointense tumor (arrows); B: Diffusion weighted imaging (DWI) reveals focal area of bright signal consistent with tumor(arrow); C: Apparent diffusion coefficient (ADC) map reveals clear focal mass with dark signal consistent with decreased ADC (arrow).
Figure 4
Figure 4 Left TZ tumor of prostate gland demonstrated by MR. A: Axial T2W image depicts ill defined, round, homogenous hypointense tumor (arrows); B: DWI depicts focal area of bright signal on left mid gland (arrow); C: K-trans map in dynamic contrast-enhanced MR imaging (DCE-MRI) clearly localizes the tumor and reveals some internal heterogeneity.