Non-mosaic trisomy 20 is rare in fetuses surviving beyond the first trimest
er. We report a case of a fetus with non-mosaic trisomy 20 in amniotic flui
d cultures obtained during the prenatal evaluation of an unusual thoraco-ab
dominal mass which was found at autopsy to be pulmonary sequestration. Gros
s inspection and autopsy of the fetus revealed multiple anomalies. Copyrigh
t (C) 2001 John Wiley Br Sons, Ltd.