Hello,
In the current scenario, the possible suggestions are as follows:
1. If it is a non-viable twin, usually absorption occurs as
pregnancy progresses or the bulge shrinks in size.
The serum beta-
hCG titres, if charted, would show a fall, previously being in the range of a twin pregnancy.
2. A mass usually increases in size as pregnancy advances depending on its nature. A high resolution scan is helpful to clarify.
3. Thickened and folded endometrium is a common occurrence and resolves in course of time.
A follow-up sonogram after a week suffices.
Endometriosis usually does not progress during pregnancy owing to the high
progesterone levels and suppressed ovulation.
Please get a follow-up sonogram and plan further management.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Shanti Vennam, OBGYN