Myometrial cysts for DD.
___ Case (1) : Uterine AVM
.
_ History of :
Gynecologic intervention esp. D&C.
Bleeding usually significant.
With -ve B-hcg.
.
__ DD :
- Gestational trophoblastic neoplasia (GTN).
_ It has similar doppler findings :
Color Aliasing due to high flow velocities and
Low resistance arterial pattern due to neovascularization.
_ With +ve B-hcg (shooting numbers).
.
___ Other LESS likely DD :
-
RPOC has same doppler but endometrial in location.
With +ve B-hcg. -
Adenomyosis has same grey scale appearance but fewer vessels with lower velocities causing dark color - NO aliasing.
-
Cystic changes with myoma but again lower vascularity and should have definable wall - NO aliasing.
-
Congested uterine veins should be symmetric distribution and dark color venous Not arterial flow - NO aliasing.