ABNORMALITIES OF PLACENTA AND CORD, OBG, HIGH RISK PREGNANCY

1. ABNORMALITIES OF PLACENTA
AND CORD
By: Ms. Nikita Saliya

2. PLACENTAL ABNORMALITIES
 PLACENTA SUCCENTURIATA
 PLACENTA EXTRACHORIALIS
 Circumvallate placenta
 Placenta marginata
 PLACENTA MEMBRANECEA

3. CORD ABNORMALITIES
 BATTLEDORE PLACENTA
 VELAMENTOUS PLACENTA
 ABNORMAL LENGTH
 Short cord
 Long cord

4. PLACENTA SUCCENTURIATA
 One or more small lobes of placenta, size of a cotyledon,
may be placed at varying distances from the main
placental margin
 A leash of vessels connecting the main to the small lobe
traverse through the membranes

5. CIRCUMVALLATE PLACENTA
 The placenta of such type is due to the smaller chorionic
plate than the basal plate
 The chorionic plate does not extend to the placental
margin
 The membranes (amnion and chorion) are folded, rolled
back upon itself to form a ring which is reflected centrally

7. PLACENTA MARGINATA
 A thin fibrous ring is present at the margin of the
chorionic plate where the fetal vessels appear to
terminate.

8. PLACENTA MEMBRANECEA
 The placenta is unduly large and thin.
 The placenta not only develops from the chorion
frondosum but also from the chorion laeve so that the
whole of the ovum is practically covered by the placenta

9. CORD ABNORMALITIES
 BATTLEDORE PLACENTA: : The cord is attached
to the margin of the placenta

10. VELAMENTOUS PLACENTA
 The cord is attached to the membranes
 The branching vessels traverse between the membranes
for a varying distance before they reach and supply the
placenta

11.  If the leash of blood vessels happens to traverse
through the membranes overlying the internal os, in
front of the presenting part, the condition is called
vasa previa

12. ABNORMAL LENGTH OF CORD
 SHORT CORD: may be true (less than 20 cm or 8")
or commonly relative due to entanglement of the
cord round any fetal part.

13.  LONG CORD: The cord may be unduly long (300
cm).

14. THANK
YOU