Diagnostic Ultrasound - Abdomen and Pelvis

Prostatic Hyperplasia
(Left) Axial CT shows the base
of an enlarged prostate .
Prostatomegaly causes
anterior displacement of the
distal left ureter at the
ureterovesical junction. (Right)
Coronal MIP of the same
patient demonstrates the
"fishhook" or J-shaped
appearance of the distal left
ureter due to elevation of
the bladder base and
ureterovesical junction from
an enlarged prostate.
Diagnoses: Urinary Tract
(Left) Transabdominal
ultrasound shows nodular
enlargement of central gland
with compression of the
slightly more hyperechoic PZ
ſt. Note elevation of bladder
base due to mass effect.
(Right) Sagittal US in the same
patient shows nodular
enlargement of the TZ and
periurethral glands with
"median lobe" protrusion into
the bladder base . This can
ball-valve into the urethra,
causing severe obstructive
symptoms. The compressed PZ
is seen posteriorly ſt. Note
bladder wall thickening .
(Left) Transverse
transabdominal ultrasound
shows enlargement of the
well-defined TZ . The
severely compressed more
hyperechoic PZ ſt is seen
posteriorly. (Right) Sagittal US
in the same patient shows the
"median lobe" of BPH
protruding into the bladder
base lumen , which may
simulate a polypoid bladder
mass. There is thickening of
the bladder wall . Low-level
intraluminal echoes st
correspond to patient's known
urinary tract infection.
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