Diagnostic Ultrasound - Abdomen and Pelvis

Solid Pancreatic Lesion
Differential Diagnoses: Pancreas
(Left) Longitudinal oblique
power Doppler ultrasound
shows an ill-defined, solid
hypoechoic mass in the
pancreatic head resulting in
obstruction of the terminal
portion of the common bile
duct ſt. (Right) Transverse
transabdominal ultrasound
shows a poorly marginated,
solid, hypoechoic mass in
the body of the pancreas,
narrowing the splenic vein ſt.
Pancreatic Ductal Carcinoma
Pancreatic Ductal Carcinoma
(Left) Transverse
transabdominal ultrasound
shows focal enlargement
of the distal pancreas with a
homogeneous hypoechoic
appearance relative to the
normal pancreas ſt. Note the
absence of ductal dilatation.
(Right) Transverse ultrasound
shows parenchymal
calcifications ſt in the
enlarged pancreatic head.
Note dilated pancreatic
and common bile st ducts and
the pancreatic margins are
indistinct.
Focal Acute Pancreatitis
Chronic Pancreatitis
(Left) Transverse
intraoperative ultrasound
shows a well-defined,
hypoechoic, solid mass ſt in
the body of the pancreas,
which was a biopsy-proven
pancreatic neuroendocrine
tumor. (Right) Transverse
transabdominal ultrasound
shows a well-circumscribed
solid and cystic mass with
peripheral loculations st.
There are also tiny cystic
spaces with thin linear
septations ſt.
Pancreatic Neuroendocrine Tumor
Serous Cystadenoma of Pancreas
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