Diagnostic Ultrasound - Abdomen and Pelvis

Allograft Hydronephrosis
(Left) Longitudinal ultrasound
of a renal transplant shows
dilatation of the renal pelvis
and calyces secondary to a
long ureteral stricture. (Right)
MIP of a CT antegrade
nephrostogram in the same
patient shows severe
hydronephrosis in a renal
transplant. There is a long
fibrous stricture of the
transplant ureter ſt. Surgical
reconstruction was required.
Diagnoses: Kidney Transplant
(Left) Longitudinal ultrasound
of a renal transplant shows
debris within a dilated
renal pelvis. The patient had
gross hematuria after a
percutaneous biopsy. It is
important to look for an
arteriovenous fistula in this
context. (Right) Transverse
color Doppler ultrasound of
the bladder in the same
patient with hematuria after a
renal transplant biopsy shows
a large, avascular clot ſt in
the bladder.
(Left) Transverse color
Doppler ultrasound shows a
calculus causing mild
hydronephrosis st in a renal
transplant. The calculus
exhibits twinkling artifact ſt
and posterior acoustic
shadowing . (Right)
Percutaneous nephrostogram
shows a dilated renal pelvis
and blunted calyces st. There
was an obstructing calculus
visible as a round filling defect
. Contrast is seen in the
nondilated ureter below
the calculus and in the bladder
.
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