Anembryonic gestation: Difference between revisions
No edit summary |
m Bot: Automated text replacement (-{{SIB}} + & -{{EH}} + & -{{EJ}} + & -{{Editor Help}} + & -{{Editor Join}} +) |
||
| Line 24: | Line 24: | ||
*[[Ovum]] | *[[Ovum]] | ||
[[Category:Obstetrics]] | [[Category:Obstetrics]] | ||
| Line 32: | Line 32: | ||
[[nl:Windei (miskraam)]] | [[nl:Windei (miskraam)]] | ||
{{WikiDoc Help Menu}} | {{WikiDoc Help Menu}} | ||
{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} | ||
Latest revision as of 22:10, 8 August 2012
Template:DiseaseDisorder infobox
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
An anembryonic gestation (aka blighted ovum) is a pregnancy in which a visible embryo never develops within a normal-appearing gestational sac, which likely occurs as a result of early embryonic death with continued development of the trophoblast. When small, the sac cannot be distinguished from the early normal pregnancy, as there may be a yolk sac, though a fetal pole is not seen.
This is one of the causes of miscarriage of a pregnancy.
For diagnosis, the sac must be of sufficient size that the absence of normal embryonic elements is established.
A pregnancy is anembryonic if a transvaginal ultrasound reveals a sac with a mean gestational sac diameter (MGD) greater than 13 mm and no yolk sac, or a MGD >18 mm with no embryo.
Many centers offer mothers a follow-up ultrasound 10 days later to verify diagnosis.
Several management options exist for anembryonic pregnancies which have not miscarried on their own.