Diagnostic Ultrasound - Abdomen and Pelvis

Peritoneal Inclusion Cyst
(Left) Sagittal transabdominal
ultrasound performed for
abdominal distension in a
patient with a history of
peritonitis shows voluminous
pelvic fluid with septa st
anterior and posterior to the
uterus ſt. Internal echoes
were artifactual. The ovaries
were displaced by the fluid.
(Right) Parasagittal
transabdominal ultrasound of
the same patient shows an
ovary displaced posteriorly
by the large peritoneal
inclusion cyst .
Diagnoses: Female Pelvis
(Left) Transverse
transabdominal ultrasound of
an adolescent post left
oophorectomy for a mature
teratoma shows a peritoneal
inclusion cyst displacing
the right ovary , which
contains a hemorrhagic
functional cyst. (Right) Axial
T2 TSE of the same patient
shows the peritoneal inclusion
cyst separate from the
normal right ovary . The
cyst takes the shape of the
peritoneal cavity.
(Left) Transverse
transabdominal ultrasound
shows a 26 cm peritoneal
inclusion cyst with thin septa
ſt. When cysts are this large,
CT or MR is better for
complete evaluation. (Right)
Sagittal fat-suppressed T2 MR
post hysterectomy shows
loculated fluid in the pelvis. A
thin adhesion is noted
superiorly with thicker
incomplete septa inferiorly .
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