Journal of Ultrasound in Medicine, Vol 10, Issue 5 255-258, Copyright © 1991 by American Institute of Ultrasound in Medicine
Sonographically detected fetal choroid plexus cysts. Frequency and association with aneuploidy
D. H. Chinn, E. I. Miller, L. M. Worthy and C. V. Towers
Department of Radiology, Hoag Memorial Hospital, Newport Beach, CA 92663.
Over a 22-month period, 1045 second-trimester pregnancies were evaluated
with ultrasound for the presence of choroid plexus cysts. The frequency of
fetal choroid plexus cysts was 3.6% (38/1045). The outcome of the 38
fetuses possessing choroid plexus cysts was as follows: One fetus had
triploidy, an occurrence not previously reported; one fetus had
hydrocephalus and a normal karyotype; the other 36 fetuses were born
normal. Our data were combined with those of previously reported series of
fetal choroid plexus cysts to determine if chromosomal analysis is
necessary in all fetuses possessing a choroid plexus cyst.