Diagnostic Ultrasound - Abdomen and Pelvis

Pancreatic Pseudocyst
(Left) Transverse ultrasound
shows a slightly lobular
pseudocyst ſt within the
pancreatic body with a welldefined
capsule and
layering sediment dependently
. Note the mass effect on
the stomach which is
displaced anteriorly. (Right)
Axial CECT in the same patient
shows the pseudocyst ſt in
the pancreatic body. The
layering debris is not readily
evident on this image, and is
much better demonstrated on
the ultrasound.
Diagnoses: Pancreas
(Left) Transverse ultrasound at
the pancreatic tail shows a
complex unilocular pseudocyst
ſt with internal echogenic
debris , likely hemorrhage.
Note the faint posterior
shadowing . (Right) Axial
CECT in the same patient is
shown. Although the
pseudocyst ſt is well
delineated, the internal debris
is barely visible, and much
better depicted with
ultrasound.
(Left) Transverse
transabdominal ultrasound
shows a large pseudocyst ſt
at the pancreatic tail. Internal
echoes are the result of
hemorrhage within the
pseudocyst. (Right) Thick-slab
MRCP shows a pseudocyst
superior to the tail of the
pancreas in a patient with
acute on chronic pancreatitis.
The pseudocyst communicated
with the dilated irregular duct
in the tail of pancreas st.
Note undilated irregular duct
in the head and body ,
edematous stomach ſt, and
inflammatory fluid in the left
retroperitoneum .
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