Abstract
Prolapse of the amniotic sac through the partially dilated cervical os in pregnancy is called 'hourglass membranes'. Ultrasonography may be useful in identifying the presenting fetal or intra-uterine parts within the bulging membranes.
Original language | English (US) |
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Pages (from-to) | 463-466 |
Number of pages | 4 |
Journal | Radiology |
Volume | 140 |
Issue number | 2 |
State | Published - 1981 |
ASJC Scopus subject areas
- Radiological and Ultrasound Technology