QUESTIONS COMPLETE 300 QUESTIONS AND CORRECT DETAILED
ANSWERS
Hypoechoic or cystic areas at the placental myometrial interface are
more significant. These may represent what? - ANSWER-
Retroplacental hematomas or areas of abruption
Maternal basal plate infarction - ANSWER-A rare condition that
produces massive blood and fibrin deposition that extends into the
intervillous space.
If blood collections deep to the placenta are large enough, covering 30-
40% of the placenta,?what might occur? - ANSWER-Ingredients, fetal
death, infarction of the deep portion of the placenta
A circumvallate placenta can only be demonstrated during what portion
of pregnancy? - ANSWER-Mid second trimester
Early in pregnancy, the entire surface of the gestational sack is covered
with the ViLLI, as the pregnancy progresses, the VEILLi usually regress
over most of the surface of the sac, and that remains becomes the
placenta. If this regression does not occur, the placenta may cover the
entire surface of the sack, if it is patchy, there may be two or more
,separate areas of placenta formation. And either case, this is called
what? - ANSWER-Placenta membranacea
Placenta membranacea - ANSWER-Fetal membranes covered by
chorionic villi due to failure of chorion differentiation into the chorion
laeve and chorion frondosum
Succenturiate lobe - ANSWER-Accessory lobe of placenta located
away from the main placenta body. It is connected to the main placenta
via large blood vessels That course through the membranes that
accompany it
Bipartite lobe - ANSWER-Is one that is divided into two approximately
equal size lives in is sometimes called but I bilobed placenta
Annular placenta - ANSWER-A ring shaped placenta that attaches
circumferentially to the myometrium.
Between succentruriateblobes, bipartite placenta, and annular placenta
which types of placentas are seen on ultrasound and which are not? -
ANSWER-Succenturiateblobes and bipartite placentas are seen on
ultrasound. And annular placenta is not seen on ultrasound.
,Sonographic findings of succenturiateblobes and bipartite placentas -
ANSWER--two masses of placenta tissue that appear unconnected. -
Color Doppler imaging will show robust flow in the blood vessels that
vascularize the accessory lobe. - when the lines are of equal size, the
primary lobe can be identified by the presence of the umbilical cord
insertion on its chorionic surface.
After 33 weeks, more that 50% of placentas contain some degree of
calcification. - ANSWER-Calicifation is a normal part of placental aging
( fact card)
Where are calcifications usually found on the placenta? - ANSWER-At
the base of the placenta, in the septa, and in the subchorionic and
perivillous spaces.
Calcification of the placenta is more common in women with what? -
ANSWER--low parity-smoke cigarettes-mothers who have thrombotic
disorders and are on anticoagulants such as heparin or aspirin therapy.
Coumadin crosses placenta discontinued first trimester due to fetal
abnormalities correlation
Calcifications in a grade 3 placenta deposited around the periphery of
several cotyledons. - ANSWER-
, Subchorionic hematoma - ANSWER-bleeding btw the endometrium
and the gestational sac.
- Pts are managed expectantly until symptoms resolve or additional
findings develop
Three subchorionic cysts - ANSWER-
Severely irregular marginated hypoechoic maternal lakes - ANSWER-
Subchorionic lesions and cystic or hypoechoic areas immediately under
the chorionic membrane adjacent to the fetal surface of the placenta
are typically acute or chronic areas of - ANSWER-Thrombus
Are subchorionic lesions and cyst a significant finding in terms of the
placenta? - ANSWER-No they are insignificant.
Sonographic findings of subchorionic thrombotic lesions - ANSWER-
Echogenic focus beneath the chorionic plate
Sonographic findings of subchorionic cystic lesions - ANSWER-Well
circumscribed, anechoic areas beneath the chorionic plate