OBS & GYNAE - Ch. 18 Abnormalities of the Placenta and Umbilical Cord

Question 1

ANEURYSM

Answer 1

FOCAL DILATATION OF AN ARTERY

Question 2

BILOBED PLACENTA

Answer 2

PLACENTA WHERE THE LOBES ARE NEARLY EQUAL IN SIZE AND THE CORD INSERTS INTO THE CHORIONIC BRIDGE OF TISSUE THAT CONNECTS THE TWO LOBES

Question 3

BODY STALK ANOMALY

Answer 3

FATAL CONDITION ASSOCIATED WITH MULTIPLE CONGENITAL ANOMALIES AND ABSENCE OF THE UMBILICAL CORD

Question 4

BREUS’ MOLE

Answer 4

RARE CONDITION, MASSIVE SUBCHORIONIC THROMBOSIS OF THE PLACENTA SECONDARY TO EXTREME VENOUS OBSTRUCTION

Question 5

EXTRACHORIAL PLACENTA

Answer 5

ATTACHMENT OF THE PLACENTAL MEMBRANES TO THE FETAL SURFACE OF THE PLACENTA RATHER THAN TO UNDERLYING VILLOUS PLACENTAL MARGIN

Question 6

FALSE KNOT

Answer 6

BENDING, TWISTING, AND BULGING OF UMBILICAL CORD VESSELS MIMICKING A KNOT IN THE UMBILICAL CORD

Question 7

GASTROSCHISIS

Answer 7

PERIUMBILICAL ABDO WALL DEFECT, TYPICALLY TO RIGHT OF NORMAL CORD INSERTION, ALLOWS FOR FREE-FLOATING BOWEL IN THE AMNIOTIC FLUID

Question 8

LIMB-BODY WALL COMPLEX

Answer 8

CONDITION CHARACTERIZED BY MULTIPLE COMPLEX FETAL ANOMALIES AND A SHORT UMBILICAL CORD

Question 9

MARGINAL INSERTION (AKA BATTLEDORE PLACENTA)

Answer 9

WHEN UMBILICAL CORD INSERTS AT THE PLACENTAL MARGIN INSTEAD OF CENTRALLY

Question 10

MICKEY MOUSE SIGN

Answer 10

DESCRIBES CROSS-SECTION OF THREE-VESSEL UMBILICAL CORD OR THE PORTAL TRIAD (PORTAL VEIN, HEPATIC ART, CBD)

Question 11

OMPHALOCELE

Answer 11

CENTRAL ANTERIOR ABDO WALL DEFECT OF THE UMBILICUS WHERE ABDO ORGANS ARE CONTAINED BY COVERING MEMBRANE CONSISTING OF PERITONEUM, WHARTON’S JELLY, AND AMNION

Question 12

PLACENTOMEGALY

Answer 12

THICKENED PLACENTA

Question 13

SYNECHIA (ASHERMAN’S SYNDROME)

Answer 13

LINEAR, EXTRA AMNIOTIC TISSUE THAT PROJECTS INTO AMNIOTIC CAVITY WITH NO RESTRICTION OF FETAL MOVEMENT

Question 14

THROMBOSIS

Answer 14

INTRAPLACENTAL AREA OF HEMORRHAGE AND CLOT

Question 15

TRUE KNOT

Answer 15

RESULT OF FETUS ACTUALLY PASSING THROUGH A LOOP OF LOOPS OF UMBILICAL CORD CREATING ONE OR MORE KNOTS IN THE CORD

Question 16

UMBILICAL COILING INDEX (UCI)

Answer 16

METHOD OF ASSESSING DEGREE OF UMBILICAL CORD COILING, DEFINED AS NUMBER OF COMPLETE COILS PER CM LENGTH OF CORD

Question 17

UMBILICAL CORD

Answer 17

VASCULAR STRUCTURE CONNECTING FETUS AND PLACENTA THAT NORMALLY CONTAINS 2 ARTS AND ONE VEIN SURROUNDED BY WHARTON’S JELLY

Question 18

UMBILICAL HERNIA

Answer 18

FAILURE OF NORMAL PHYSIOLOGIC GUT HERNIATION INTO THE ABDO, RESULTING IN A SML AMOUNT OF BOWEL PROTRUDING INTO THE BASE OF THE UMBILICAL CORD

Question 19

VENOUS LAKES

Answer 19

TUBULAR, ANECHOIC STRUCTURES FOUND BENEATH THE CHORIONIC PLATE THAT CORRESPOND TO BLOOD-FILLED SPACES FOUND AT DELIVERY