Diagnostic Ultrasound - Abdomen and Pelvis

Renal Angiomyolipoma
(Left) Longitudinal ultrasound
shows an echogenic AML in
the upper pole of the kidney.
Note the subtle posterior
acoustic shadowing ſt.
(Right) Longitudinal
ultrasound of the kidney in a
patient with tuberous sclerosis
shows an exophytic echogenic
AML . The renal cortex is
increased in echogenicity with
multiple small, echogenic foci
ſt representing smaller AML.
Diagnoses: Urinary Tract
(Left) Longitudinal color
Doppler ultrasound of the
same patient with tuberous
sclerosis shows an exophytic
echogenic AML . Bridging
renal vessels st supply the
AML. (Right) Coronal-delayed
phase CECT in a patient with
tuberous sclerosis shows an
exophytic AML , which is
mostly solid with a few areas
containing fat . Multiple
other AML are present ſt,
largest in the left lower pole.
(Left) Longitudinal US shows a
hyperechoic nonshadowing
mass in the left kidney. The
mass is less echogenic than
renal sinus fat ſt. This is a
nonspecific appearance, but
the most likely causes would
be AML or RCC. Further
imaging with CT or MR is
needed. (Right) Axial non fatsuppressed
T2 HASTE MR in
the same patient shows that
the lesion has low T2
signal. This was a fat-poor
AML at partial nephrectomy.
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