Diagnostic Ultrasound - Abdomen and Pelvis

Extraovarian Adnexal Mass
Paraovarian/Peritubal Cyst
Pelvic Varices
(Left) Grayscale ultrasound
depicts a thin-walled anechoic
cyst separate from the
ipsilateral ovary and
uterus, consistent with a
paraovarian cyst. Appearances
also raise the possibility of an
adjacent complex adnexal
mass ſt. (Right) US with color
flow mapping in the same
patient shows that the masslike
lesion is composed of
multiple dilated veins
representing pelvic varices.
Differential Diagnoses: Female Pelvis
Endometrioma
Endometrioma
(Left) TV US demonstrates a
mass with homogeneous lowlevel
internal echoes and
posterior acoustic
enhancement ſt. The
ipsilateral ovary was identified
separately (not shown).
(Right) Internal high signal on
T1-weighted fat saturation
MR confirms the hemorrhagic
nature of the lesion's
contents, in keeping with the
diagnosis of endometrioma
. Ovaries are noted.
Ectopic Pregnancy
Ectopic Pregnancy
(Left) Coronal ultrasound of
the right adnexa shows a right
tubal ectopic separate from
the normal right ovary ſt.
There is an echogenic tubal
ring st with central fluid and
a yolk sac . (Right)
Transverse transabdominal
color Doppler ultrasound
shows an echogenic vascular
ring surrounded by
hemorrhage ſt, consistent
with a bleeding ectopic
pregnancy. The left ovary
contains a luteal cyst st.
1039