PIERRE ROBIN SYNDROME FETAL ULTRASOUND

COLLAGE BY DR ALAA OBEID

Robin sequence, also called Pierre Robin syndrome or Pierre Robin anamaloid, is a congenital condition characterized by facial abnormalities. Its etiology has no genetic base, but rather, is reliant on a sequence of events, one following the other.

Ultrasound

A sagittal fetal facial profile may show severe micrognathia. Ancillary sonographic features include

• polyhydramnios: from impaired swallowing from micrognathia

Complications

Severe micrognathia may lead to

• obstruction of fetal swallowing: may in turn cause polyhydramnios
• airway obstruction: may, in turn, lead to postnatal hypoxia