Prolapse of the amniotic sac ('hourglass membranes'): ultrasound appearance

Autor: M. S. Bowen, H. E. Phillips, John P. McGahan
Rok vydání: 1981
Předmět:
Zdroj: Radiology. 140(2)
ISSN: 0033-8419
Popis: 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.
Databáze: OpenAIRE