Diagnostic Ultrasound - Abdomen and Pelvis

Prostatic Carcinoma
Diagnoses: Urinary Tract
(Left) Heterogeneous T2 signal
intensity is seen within the
transition zone (TZ) with
findings of glandular and
stromal hyperplasia. The illdefined
homogeneous T2
hypointense region on anterior
TZ, consistent with "erased
charcoal" sign, is seen. Note
BPH nodule with a smoothly
marginated T2 dark rim st
uniformly T2-hyperintense PZ
ſt and neurovascular bundles
. (Right) Focal, ill-defined
region of homogeneous T2
hypointensity in the anterior
TZ corresponds to focal
hypervascularity on the color
map .
(Left) Focal, ill-defined region
of homogeneous T2
hypointensity and
hypervascularity in the
anterior TZ shows restricted
diffusion . (Right)
Corresponding low signal is
shown on ADC map .
Targeted MR-US fusion biopsy
of this lesion showed Gleason
4 + 4 adenocarcinoma.
(Left) Transverse TRUS shows
a small, rounded, hypoechoic
lesion in the left TZ .
Targeted MR/US fusion biopsy
of this lesion revealed benign
tissue. Extensive PZ
calcifications are present.
(Right) Transverse TRUS in a
different patient shows a
larger hypoechoic lesion
(outlined in red) within the left
TZ. Pathology from a targeted
MR/US fusion biopsy showed
Gleason 4 + 5
adenocarcinoma.
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