Prostate cancer in 58-year-old man. (a) Axial and
(b) sagittal T2-weighted MR images demonstrate a
low-signal-intensity lesion (arrow) in left mid PZ suspicious for
cancer. (c) MR spectra demonstrate increased ratio of
choline (cho) to citrate (cit) in left
mid PZ lesion (∗) when compared with normal right side.
(d) Raw dynamic contrast-enhanced MR image and
(e)
Ktrans and (f) kep
maps help localize tumor (arrow). (g) Histopathologic slide
at mid prostate level confirms presence of tumor (Gleason score, 7),
with extracapsular extension (red line) detected on MR images.
A = anterior, L = left,
P = posterior, R = right.