History: 35 year old female with vaginal bleeding after 1st trimester miscarriage.
This is a case of retained products of conception. Retained products of conception can occur after miscarriage, abortion, normal delivery, or after a dilatation and curretage procedure. Clinical examination and symptoms of retained products of conception are nonspecific and may mimic those that occur during the normal postpartum stage. In some cases, RPOC is suspected when there is prolonged or sustained vaginal bleeding after delivery.
The differential diagnosis of the above imaging appearance includes:
1. Blood clot (would not show flow on color Doppler images)
2. Endometritis (clinically presents with fever and focal uterine tenderness)
3. Normal postpartum endometrium (should decrease in thickness progressively with time)
4. Molar pregnancy (would have elevated hCG levels)
5. Missed abortion (could show more fetal tissue still present in gestation sac)