halo sign of hydrops
ha·lo sign of hy·drops
a discredited radiographic sign of fetal hydrops caused by scalp edema so that a definite corona surrounds the skull.
Farlex Partner Medical Dictionary © Farlex 2012
halo sign of hydrops(1) Halo sign, see there.
(2) A corona-like finding seen by radiologic examination of a foetus, which was formerly regarded as characteristic of foetal hydrops.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.