Shared Flashcard Set

Details

First Trimester Complications
Diagnostic Medical Sonography
27
Medical
Undergraduate 1
06/20/2011

Additional Medical Flashcards

 


 

Cards

Term
acrania
Definition
partial or complete absence of the cranium
Term

anembryonic pregnancy

(blighted ovum)

Definition
ovum without an embryo
Term
anencephaly
Definition
congenital absence of the brain and cranial vault with the cerebral hemispheres missing or reduced to small masses
Term
bowel herniation
Definition
during the first trimester the bowel normally herniates outside the abdominal cavity between 8 and 12 weeks
Term
cephalocele
Definition
protrusion of the brain from the cranial cavity
Term
complete abortion
Definition
complete removal of all products of conception, including placenta
Term
corpus luteum cyst
Definition
a physiologic cyst that develops within the ovary after ovulation and secretes progesterone and prevents menses if fertilization occurs; may persist until the 16th to 18th week of pregnancy
Term
cystic hygroma
Definition
fluid-filled structure (often with septations), initially surrounding the neck, may extend upward to the head or laterally to the body
Term
ectopic pregnancy
Definition
pregnancy outside the uterus
Term
gastroschisis
Definition
congenital fissure that remains open in the wall of the abdomen just to the right of the umbilical cord; bowel and other organs may protrude outside the abdomen from this opening
Term
gestational trophoblastic disease
Definition
condition in which trophoblastic tissue overtakes the pregnancy and propagates throught the uterine cavity
Term
heterotopic pregnancy
Definition
simultaneous intrauterine and extrauterine pregnancy
Term
holoprosencephaly
Definition
failure of forebrain to divide into cerebral hemispheres, which results in a single large ventricle with varying amounts of cerebral cortex that has been known to occur with trisomies 13 to 15 and trisomy 18
Term
incomplete abortion
Definition
retained products of conception
Term
iniencephaly
Definition
a congenitally deformed fetus in which the brain substance protrudes through a fissure in the occiput, so that the brain and spinal cord occupy a single cavity
Term
interstitial pregnancy
Definition
pregnancy occuring in the fallopian tube near the cornu of the uterus; also known as cornual pregnancy
Term
omphalocele
Definition
congenital hernia of the umbilicus that is covered with a membrance; the cord may be seen in the middle of the mass
Term
pseudogestational sac
Definition
decidual reaciton that occurs within the uterus in a patient with an ectopic pregnancy
Term
Turner's syndrome
Definition
a nonlethal genetic abnormality in which chromosomal makeup is 45 XO insteade of the normal 46 XX or XY. Cystic hygroma often is seen in affected fetuses in the first trimester. Survivors tend to be short in stature with low-set ears, have webbing of the nech, shield-shaped chest, and infertility as a result of an endocrine disorder caused by failure of the ovaries to respond to pituitary hormone
Term
ventriculomegaly
Definition
dilation of the ventricular system without enlargement of the cranium
Term
7weeks
Definition
When can the embryonic head sonographically be identified?
Term
choroid plexus
Definition
The dominant structure seen within the embryonic cranium in the first trimester, which fills the lateral ventricles that in turn fill the cranial vault, is what?
Term
hydranencephaly
Definition
brain necrosis from occlusion of the internal carotid arteries
Term
12 to 14 weeks
Definition
when is traditional cranial anatomy visualized?
Term
acrania
Definition
What is thought to be the predecessor of anencephaly?
Term
after 9 weeks
Definition
When does the ossification of the cranium begin?
Supporting users have an ad free experience!