Diagnostic Ultrasound - Abdomen and Pelvis

Splenic Tumors
(Left) Longitudinal grayscale
ultrasound image
demonstrates a splenic
hemangioma, which appears
as a well-circumscribed,
homogenously hyperechoic
mass in the inferior spleen ſt.
(Right) Corresponding color
Doppler image of the lesion
ſt shows a scant amount of
flow along its periphery .
Diagnoses: Spleen
(Left) Axial CT image through
the inferior spleen during
portal venous phase shows a
well-circumscribed lesion ſt,
which is hypoattenuating
compared to spleen
parenchyma . (Right) Axial
CT image at the same level
during the 3-minute delayed
phase shows retention of
contrast within the lesion ſt,
now nearly isodense to spleen
parenchyma . This
represents a hemangioma,
though a hamartoma could
have a similar appearance.
(Left) Transverse
transabdominal ultrasound
shows a large, ill-defined
hemangioma ſt occupying
almost the entire spleen. Note
it is isoechoic to the spleen
and the displaced vessel is the
clue. (Right) Transverse color
Doppler ultrasound in the
same patient shows minimal
internal vascularity ſt within
the mass. Note the
displacement of surrounding
parenchymal vessels st.
411