Diagnostic Ultrasound - Abdomen and Pelvis

Pancreatic Ductal Carcinoma
(Left) Transverse
transabdominal ultrasound
shows a rounded mass in
the pancreatic head, which is
hypoechoic relative to the
normal pancreas ſt. (Right)
Transverse transabdominal
ultrasound shows an
infiltrative, heterogenous,
hypoechoic mass in the
pancreatic head with vascular
encasement of the superior
mesenteric vein ſt.
Diagnoses: Pancreas
(Left) Transverse
transabdominal ultrasound
shows a large, hypoechoic
mass in the pancreatic body
, narrowing the splenic vein
as it approaches the portal
confluence ſt. The distal body
is obscured; however, the
pancreatic duct appears
dilated st. (Right) Axial CECT
also demonstrates the
infiltrative pancreatic body
mass encasing the splenic
vein ſt to the portal
confluence and abutting the
superior mesenteric artery st.
Note the upstream pancreatic
ductal dilatation and
parenchymal atrophy .
(Left) Transverse
transabdominal ultrasound
shows a tortuous dilated
pancreatic duct ſt. The
pancreatic head is obscured by
gas in the common bile duct
stent st. Note the mass-like
enlargement of the duodenum
. (Right) Axial CECT better
shows the ill-defined
hypodense mass
infiltrating the peripancreatic
fat and invading the
duodenum ſt. There is a
common bile duct stent in
place st.
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