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Unformatted text preview: r wall defects Elevated alpha-fetoprotein.
Fetal omphalocelesof mid abdomen. Covered by thin amnioperitoneal membrane. Large type contains liver, usually stomach and bowel. Small type contains only bowel located at the base of umbilical cord. Associations: Structural abnormalities and chromosomal abnormalities.
Paraumbilical, usually right lower quadrant. No covering membrane. Protruding bowel floats freely in amniotic fluid. No associated anomalies or abnormal karyotype.
Fetal cystic Mesenteric masses
abdominal cyst. Duplication cyst. Urachal cysts. Ovarian (female).
Common third trimester cause of of membranes.
Spontaneous rupture oligohydramnios
Common second trimester causes of oligohydramniosobstruction (posterior urethral valves).
Bilateral renal abnormalit. Urinary bladder
Keyhole fetal bladder configuration
Dilated bladder and proximal urethra due to posterior urethral valves.
Enlarged hyperechoic fetal kidneys with oligohydramnios?
Infantile polycystic kidney disease (ARPKD).
Bilateral fetal renal abnormalities?
Urethral obstruction (posterior urethral valves). Renal agenesis. Infantile polycystic kidney disease. Bilateral UPJ obstruction.
Distinguishes dilated fetal ureter from bowel and blood vessel?imaging distinguishes bowel (peristalsis).
Doppler distinguishes from blood vessel. Real time
Fetal renal Increased findings
dysplasia renal cortex echogenicity (greater than liver). Subcortical cysts
Common fetal unilateral renal anomalies?
Multicystic dysplastic kidney. Reflux. UPJ obstruction.
If obstruction is identified in upper but not lower pole of from upper pole moiety. considered?
Duplicated kidney with ectopic uretrerocele kidney, what should be
Four major Heterozygousanomalies, which Osteogenesis imperfecta. Achondrogenesis. Thanatophoric dysplasia
fetal skeletal achondroplasia. account for 2/3 or all dysplasias?
Heterozygous achondroplasia belowUS findings?
Femur length falls fetal 10th percentile before 28 weeks' gestation....
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This document was uploaded on 01/14/2014.
- Winter '14