CASE 17
History: A pregnant patient presents with a high maternal alpha-fetoprotein measurement.
1. What should be included in the differential diagnosis of a lemon-shaped head? (Choose all that apply.)
A. Normal fetus
B. Trisomy 18
2. Which of the following is not an associated intracranial finding of myelomeningocele?
A. Lemon sign
C. Banana sign
3. Which of the following would be considered in the differential diagnosis of a lumbosacral mass with a lemon sign and a banana sign?
4. Which of the following is not a true statement concerning myelomeningocele?
A. Sensitivity of the lemon sign and the banana sign is very high in identifying spina bifida.
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