Diagnostic Ultrasound - Abdomen and Pelvis

Myelolipoma
(Left) Longitudinal US shows a
lobulated hyperechoic right
adrenal myelolipoma ſt. Note
the adjacent liver echogenicity
and atrophic right kidney .
(Right) Coronal CT shows an
encapsulated, heterogeneous
myelolipoma with fat st
and soft tissue components
ſt.
Diagnoses: Adrenal Gland
(Left) Axial CT shows fat st
within a myelolipoma
arising from the lateral limb of
the left adrenal gland .
Note the ill-defined soft tissue
component ſt. (Right) Axial
T1 in-phase MR shows
hyperintensity st of fat within
the mass seen on CT. Wispy
soft tissue components show
T1 isointensity ſt.
(Left) Axial T1 MR with fat
saturation shows signal drop
st of the fat-containing
components of the
myelolipoma . Wispy soft
tissue components show T1
isointensity ſt. (Right) Axial
opposed-phase T1 MR shows
no drop in signal of the
macroscopic fat elements st.
Note the India ink etching
artifact at the interface
between the fat and soft
tissue elements of the
myelolipoma .
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