Blighted Ovum Diagnosis

Blighted Ovum Misdiagnosis

February 29, 2012


There is a lot of talk on the internet of people being misdiagnosed with a blighted ovum. Although this has obviously happened, these cases are rare and with some of the high tech ultrasound equipment available these days it is very unlikely to happen – particularly where 3d scan equipment is involved.

Misdiagnosed blighted ovums are more likely to occur much earlier on in the pregnancy – for example nearer or before the 6 week mark where there is not so much to see in the ultrasound anyway, and dates can be wrong by a few days.

If you are in any doubt about your blighted ovum diagnosis, you should seek a second opinion. But most doctors will perform successive ultrasounds over 1 or 2 week intervals to confirm that a blighted ovum has occurred. Any treatment recommended will only be after due consideration and in most cases doctors will recommend waiting for a natural miscarriage.

So, although we may all want that hope that blighted ovum is the wrong diagnosis and we will go on to have a healthy baby, that must be tempered with realism so that expectations are not raised to an unrealistic level. Blighted Ovum misdiagnosis is extremely rare.

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  • Reply Kay August 22, 2013 at 11:34 pm

    I had a misdiagnosed blighted ovum. It took five ultrasounds on high tech machines before they found my little gal at about nine weeks. The last D&C I turned down was at eight weeks. I have a tilted uterus though and that makes the diagnosis more common. It’s not as rare as you might think.

  • Reply Priya August 4, 2013 at 4:27 am

    Dear Kay,

    My last period was due on June 1,2013…it didnt come on time the next month and I thought it must be coz of hypothyroidism (although my thyroid is in control, TSH – below 2, last three periods were on time and i am on 88mcg thyronorm)

    I did my first home pregnancy test on 8th July, 2013, i had one dark and one faint line…i continued taking these home test a couple of times untill 11th july morning with same results….my husband and I decided to visit a lab doctor and take a bloot test to get rid of my anxiety… The Doc did a home pregnanncy test infront of us and confirmed my pregnancy…

    I went to a renowned gynac on 13th July, she told me without internal/ external examination that i should continue taking folic acid, take b-complex and susten -200 twice a day…i was told to go for an ultrasound on 25th June and visit her again…

    I went for my ultrasound (abdomen) on 25th and following was the report:

    LMP: 7 weeks and 5 days
    GA: 4 weeks and 3 days
    Os closed
    MSD: 3mm, 4 weeks 3 days gestation
    Yolk sac seen
    No fetal pole seen, no bleed
    Chriodecidual reaction normal

    I went to my gynac with this report and asked for an explanation, difference between my LMP and my GA which was over 3 weeks and she said casually that either i ovoluted late or the growth is probably not proper and things will only be clear after a second sonography scheduled for 10th august…

    Everything was normal untill 29th july evening, when i noticed a brown sticky discharge…..i panicked and called my gynac, it was 10 pm ans she said wait till morning but I couldnt wait and spoke to my aunt who’s also a renowned gynac but in another state, she told me to take some injections (susten, progestorone ) immediately… She also told me to take Duphaston twice a day…

    I was rushed to a hospital at around 11pm in the night… A physical internal examination said that my os / something is closed and was asked to go for an emerency ultrasound at midnight, the report was:

    LMP: 8 weeks and 3 days
    GA: 5 weeks and 1 day
    Os closed
    MSD: 0.6cm , 5 weeks 1day gestation
    No yolk, no fetal pole seen, no bleed
    Chriodecidual reaction minimal

    I was given a susten 200 intramuscular injection after my ultrasound (abdomen)

    In my next day’s gynac visit, i was told that there is no proper growth, i should stop taking medicines and if my brown spots increase and covert into proper bleeding, i should get my cleaning done…She told me i have blighted ovum

    My areas of doubts:

    She never examined me internally or externally in all the three visitis.
    She never took any precautionery measures if at all she had any doubts after my first ultrasound reports
    She couldnt explain or gave me anything for my brown discharge which is still there
    My G Sac has increased from 3mm to 6mm in 4 days, is it mandatory to see yolk sac
    Yolk sac was seen in first scan but was missing in second scan, why?
    Choriodecidual reaction normal in first scan and minimal is second scan, why?

    Please advice, what should be done?

    • Reply admin August 4, 2013 at 10:57 am

      Hi Priya, there is a lot of information here and you seem to have got a lot of advice from doctors. I have to reiterate that I am not a doctor so I can’t give you any medical advice on this. However, I would make the following notes: If you got a positive pregnancy test on 8th July that was only a faint 2nd line then it would be likely you would be around 4 weeks at that point. Therefore by 25th July you would likely be at least 6 weeks so measurements of gestational age of 4w 3d at that point might not be a good sign. Even with a blighted ovum the sac continues to grow for a certain amount of time.
      If you are not happy with the treatment that you are getting from the doctors then can you see someone else? I wish you good luck and hope for a happy outcome but with the GA dates that you are getting it does sound possibly like a blighted ovum.

  • Reply wendy June 26, 2013 at 4:59 pm

    my last mensrtual was may 5th i did a pregnacy test june 10 it was positive they said i was 5weeks and 2days so they schedule me and u/s on june 11 2013 their was no embryo in the sac .they did a hcg on the june 12th it was 3249 she said that wasnt high enough not for the weeks i was , so they did another hcg on june 19 the hcg was 8000 she said that its rising but not fast i might be possibility of blighteed ovum so i just did an u/s june 26 still nothing in the sac . im worried cause why my hcg still going up and no baby . so they scheduling me another u/s on july 5 so she said if the sac is still at the same measurement i need to consider a D n C i dont know what to do..

    • Reply admin June 27, 2013 at 10:04 am

      Hi Wendy, I’m so sorry for what you are going through. HCG does indeed still rise when you have a blighted ovum but it can rise at a slower rate than is normal. It is good that they are scheduling a number of ultrasounds to check what is going on. There isn’t really anything that you can do at this stage but wait I am afraid and the waiting is often torture. I hope that a blighted ovum is not the case but if there is no embryo still at this stage then it is likely that BO is the case. Best wishes.

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