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  • Title: First-trimester diagnosis of Meckel-Gruber syndrome by transabdominal sonography in a low-risk case.
    Author: Braithwaite JM, Economides DL.
    Journal: Prenat Diagn; 1995 Dec; 15(12):1168-70. PubMed ID: 8750299.
    Abstract:
    Meckel-Gruber syndrome is a rare autosomal recessive disorder often resulting in neonatal death within a few hours of life. The condition is usually diagnosed ultrasonographically in the second trimester and earlier diagnosis has been mainly confined to high recurrence risk pregnancies. We describe the earliest non-invasive diagnosis of this condition at 12+2 weeks' gestation in a patient with no previous history using transabdominal ultrasound. Pregnancy termination was declined. Subsequent development of anhydramnios in the mid-trimester resulted in poor fetal visualization. We propose that first-trimester diagnosis of this condition is not only possible but preferable, as normal liquor volume facilitates visualization of fetal anatomy.
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