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It covers ICD codes 630 to 679. The full chapter can be found on pages 355 to 378 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1. Both volumes can be downloaded for free from the website of the World Health Organization.
Circumvallate placenta is a rare condition affecting about 1-2% of pregnancies, in which the amnion and chorion fetal membranes essentially "double back" on the fetal side around the edges of the placenta. [1]
Constriction ring syndrome (CRS) is a congenital disorder with unknown cause. Because of the unknown cause there are many different, and sometimes incorrect, names. It is a malformation due to intrauterine bands or rings that produce deep grooves in (most commonly distal) extremities such as fingers and toes.
The anomaly scan, also sometimes called the anatomy scan, 20-week ultrasound, or level 2 ultrasound, evaluates anatomic structures of the fetus, placenta, and maternal pelvic organs. This scan is an important and common component of routine prenatal care . [ 1 ]
Histopathology of placenta with increased syncytial knotting of chorionic villi, with two knots pointed out. The following characteristics of placentas have been said to be associated with placental insufficiency, however all of them occur in normal healthy placentas and full term healthy births, so none of them can be used to accurately diagnose placental insufficiency: [citation needed]
Placental Disease can be diagnosed through technologies such as, Prenatal ultrasound evaluation and invasive foetal testing. The size of the foetus is taken into account through ultrasonography in terms of intrauterine growth restriction (IUGR). In conjunction with taking into account the maternal history. [8]
Circumvallate placenta A circumvallate placenta refers to when the foetal membrane wraps twice around, over the foetal side around the edge of the placenta . This is to compensate for an undersized chorionic plate resulting in a decreased nutritional supply to the foetus.
Velamentous cord insertion is often diagnosed using an abdominal ultrasound. [3] [4] This is most successful in the second trimester, [13] however Color Doppler ultrasound [14] or transvaginal ultrasound [15] can be used in difficult cases, such as when the placenta is located