Twin-peak sign

Case contributed by Dr Bruno Di Muzio

Presentation

22 weeks twin pregnancy. Routine antenatal ultrasound.

Patient Data

Age: 24 years
Gender: Female
Ultrasound

Antenatal US (selected images)

Transverse image of the placenta reveals a triangular peak of villi extending from the placenta into the intertwin membrane. 

Case Discussion

The twin peak sign indicates the presence of a dichorionic-diamniotic twin gestation. It represents the extension of placental villi into the potential space that is formed from the reflection of opposed amniotic and chorionic layers from each fetus.

PlayAdd to Share

Case information

rID: 12931
Case created: 4th Feb 2011
Last edited: 6th Nov 2017
System: Obstetrics
Inclusion in quiz mode: Included

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.