CASE 95
LT = left.
Used with permission from Anderson Publishing Ltd. from Hellinger J, et al: Fetal MRI in the third dimension. Appl Radiol 2010; 39[7]:8-19. © Anderson Publishing Ltd.
History: A 32-year-old woman presents for a routine prenatal ultrasound scan.
1. What should be included in the differential diagnosis? (Choose all that apply.)
B. Congenital cystic adenomatoid malformation
C. Congenital high airway obstruction syndrome (CHAOS)
D. Congenital diaphragmatic hernia
2. Which of the following is not an ultrasound finding in a fetus with CHAOS?
B. Deviation of the heart into the right thorax
C. Inferior displacement of the diaphragms
D. Fluid-filled dilation of the trachea and bronchi
3. In terms of treatment of CHAOS, which of the following statements is true?
A. Emergency delivery in the second trimester is required.
B. There is no effective treatment.
C. Ex utero surgery can be successful.
D. In utero surgery is not performed.
4. Which of the following is the best explanation for development of fetal ascites or hydrops with CHAOS?
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