Diagnostic Ultrasound - Abdomen and Pelvis

Intraductal Papillary Mucinous Neoplasm (IPMN)
(Left) Transverse oblique
transabdominal ultrasound
demonstrates a prominent
main pancreatic duct ſt.
Superior mesenteric vein st is
noted. (Right) Transabdominal
ultrasound in the same patient
demonstrates a septated
cystic lesion ſt just caudal to
the dilated main pancreatic
duct in the head of the
pancreas.
Diagnoses: Pancreas
(Left) Corresponding axial
T2WI MR in the same patient
demonstrates a thin-walled,
tubular cystic lesion with
curvilinear connection st to
the main pancreatic duct ſt
consistent with side-branchtype
IPMN. (Right)
Corresponding 3D volumerendered
MRCP better
demonstrates the
communication ſt between
the cystic lesion and the main
pancreatic duct consistent
with a side-branch-type IPMN.
A long segment of stricturing
st is incidentally noted in the
common bile duct.
(Left) Transabdominal
ultrasound demonstrates
multiple oval and elongated
cystic lesions in the pancreatic
head/body ſt. Splenic vein st
is also noted. (Right) Coronal
T2 HASTE MR better
demonstrates the elongated,
cystic dilatation of side
branches st in the body of the
pancreas with curvilinear
communication to the dilated
main pancreatic duct ſt.
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