Echogenic (hyperechogenic) bowel
Intestine that reflects more sound on an ultrasound examination than usual
making it appear very white. The finding of echogenic bowel is usually a normal
variant in the majority of cases. However, the finding of echogenic bowel has
been associated with an increased risk for chromosomal abnormality, cystic
fibrosis, viral infection (CMV and parvovirus) , unexplained fetal death, growth
restriction, and premature birth.
A distinct area that reflects more sound on an ultrasound examination than
usual making it appear very white. The term commonly refers to bright spots seen
in the ventricles of the heart. Very bright small spots may represent dense papillary muscles
or tendons within the heart. Cardiac tumors may also appear as spots within the
heart . However, tumors tend to be larger, multiple, and are not as bright as an echogenic focus.
New-onset convulsions (grand mal seizure) in a woman with preeclampsia.
Preeclampsia is a condition characterized by high blood
pressure and protein in the urine that develops after the 20th week of
pregnancy. The cause of preeclampsia is unknown.
A pregnancy growing outside of the uterus.
Swelling caused by the accumulation of fluid.
Edwards' syndrome (Trisomy 18)
A disorder characterized by severe mental retardation and multiple
abnormalities, such as cleft lip and palate, small jaw (micrognathia), low set
ears, club feet,
clenched fists, intrauterine growth restriction, single umbilical artery, elevated amniotic fluid ( polyhydramnios),
and kidney abnormalities. More than 90% of fetuses have a heart defect.
Only 5% to 10 % of infants
survive the first year
after delivery. Death is usually caused by
inability to maintain normal breathing or cardiorespiratory complications.
Edwards' syndrome occurs in about one out of 6000 live births and is caused
by extra material from chromosome 18. In most cases (80%) there are three
copies of chromosome 18 instead of two. In some cases extra material from a
piece of chromosome 18 becomes attached to another chromosome (translocation). Mosaicism (where some of the child's
cells have three copies of chromosome 18 and some cells have the normal two
copies of chromosome 18)
is a less common cause. Recurrence risk is 1% or less for
cases caused by three copies of chromosome 18. The risk of having a child with
trisomy 18 also increases as a woman gets older. If a parent is a balanced carrier
of a translocation, the risk for recurrence is much higher.
Reference: Cereda A, Carey JC.The trisomy 18
syndrome.Orphanet J Rare Dis. 2012 Oct 23;7:81. doi:
Thinning or shortening of the cervix.
A fertilized egg from initial cell division until the eighth week of
A defect affecting the skull resulting in the herniation of the meninges and
portions of the brain through a bony midline defect in the skull
Passage of the widest diameter of the presenting
of the part of the fetus (usually the head) to a level below
the first sacral vertebra and the symphysis
pubis (the joint between the pubic bones at the front of the
A method of pain relief in which anesthesia is injected into
the space around the spinal cord (epidural space) to numb the lower body.
An incision made between the vagina and rectum to widen the vaginal opening for delivery.
Erythema infectiosum (Fifth disease)
Erythema infectiosum also known as Fifth disease is a common childhood
illness caused by a virus called parvovirus B19. The virus appears to be
transmitted by person-to-person contact through saliva, sputum, or nasal mucus. About
50% of all adults have been infected sometime during childhood or adolescence.
The incubation period for the infection is 4 to 14 days. Persons infected
with the virus may experience fever, malaise, joint pain (particularly of the
peripheral joints), and profuse nasal discharge. There may be a lacelike rash on
face, trunk , and extremities (See
.The infection is
sometimes mistaken for rubella. Persons are no longer infectious after the appearance of the rash.
Women who become infected with parvovirus for the first time during their
pregnancy may pass the virus to their unborn child. Parvovirus can cause severe anemia in the fetus which
may lead to congestive heart failure. The heart itself may become enlarged. In
addition parvovirus infection has uncommonly been associated with enlarged
ventricles in the fetal brain and calcium deposits in the spleen. The overall fetal loss rate
maternal infection ranges from 2% to 10%.
Women suspected of having a new parvovirus infection during pregnancy are
usually followed with serial ultrasounds for 8 to 12 weeks after infection to
detect the development of anemia or fetal hydrops.
The thinned out blood of the anemic fetus may be detected by measuring the flow
of blood through middle cerebral artery of the brain. Fetal hydrops
is a condition where fluid collects in the abdomen, around the lungs, and skin
due to congestive heart failure.
Leave from the workplace
is controversial and is not routinely recommended
A group of steroid compounds that includes estradiol, estriol, and estrone. Estrogens are produced by the
granulosa cells of developing egg follicles in the ovary, the corpus luteum, and
the placenta. They are also produced in small amounts by peripheral tissues, the adrenal
glands, and in men by the testes.
Estrogens promote the development of secondary female sexual characteristics,
and influence the metabolism of bone and the production of many substances produced by
Estradiol (E2) is the primary hormone produced during a woman's reproductive
years. It reaches high levels just before ovulation occurs during the menstrual
cycle, and is produced in large quantities by the placenta from fetal and
maternal adrenal steroids.
External cephalic version
To manually turn the fetus
from a breech (sitting position) presentation to a cephalic presentation (head
down nearest to the cervix) by applying external pressure on the mother's
Extremely lo birth weight (ELBW)
A birth weight of less than 1000 grams ( 2 pounds 3 ounces)