Placental Abnormalities

by Carlo Raj, MD

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    Our topic now brings us to various placental abnormalities. I will walk you through those placental abnormalities that you will encounter on a frequent basis. Our first diagnosis here will be placenta accreta. Once we understand accreta, then I’ll quickly tell you about others that share the name and we’ll tell you exactly as to where the placenta is then attaching. The reason I emphasized "attaching" is because accreta has the letter A in it. It is going to attach to what? Now that’s the pathology that I will describe to you. What ends up happening is that normally, if you have implantation in the uterus. Now, this is not ectopic pregnancy. The fertilized egg has made its way to the uterus and this time, normally speaking, this fertlized egg should implant and attach to the decidua. The decidua is part of the endometrium of the female uterus. Think of it as such. What ends up happening here – Well, what’s the next superficial layer of the uterus? It’s called the myometrium, correct? My goodness, there should be no implantation or attachment to the myometrium. But if that occurs, this brings you to the diagnosis of placental accreta. Partial or complete absence of decidua, which means that the normal endometrium tissue that should be attaching to the chorionic villi of the placenta is not occurring. Therefore, you’ll notice here that the placenta is directly attaching to the myometrium. Once you understand that, let’s go on to complications here and you’ll find this be quite interesting and makes perfect sense. If you have a placenta that’s attaching the myometrium, that is a very firm and pathologically strong attachment to the myometrium. So now it’s time for delivery, parturition. And so therefore the placenta is having a hard time coming off the...

    About the Lecture

    The lecture Placental Abnormalities by Carlo Raj, MD is from the course Pregnancy Complications.

    Included Quiz Questions

    1. Placenta increta
    2. Placenta percreta
    3. Placenta accreta
    4. Abruptio placenta
    5. Placenta previa
    1. Rupture of fallopian tubes.
    2. Sheehan’s syndrome
    3. Inflammation and scarring of uterine lining
    4. Absence of deciduas
    5. Postpartum hemorrhage
    1. Placenta that implants in the lower uterine segment or cervix.
    2. Placenta that implants into the myometrium.
    3. The first villi that attaches to the uterus.
    4. Placenta that attaches to the decidua too early.
    5. Placenta that implants and through the myometrium.
    1. Premature rupture of membranes
    2. Placenta previa
    3. Placenta percreta
    4. First pregnancy
    5. Urinary tract infection

    Author of lecture Placental Abnormalities

     Carlo Raj, MD

    Carlo Raj, MD

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