TITLE:
Congenital Unilateral Hypoplasia of the Orbicularis Oris Muscle: A Rare Cause of Congenital Unilateral Upper Lip Palsy
AUTHORS:
Sadık Şentürk, Duran Efe
KEYWORDS:
Congenital Upper Lip Palsy; Unilateral Hypoplasia; Orbicularis Oris Muscle
JOURNAL NAME:
Modern Plastic Surgery,
Vol.3 No.2,
April
12,
2013
ABSTRACT: Asymmetric facial appearance
may originate from abnormalities of facial musculature or facial innervation. Congenital
absence or hypoplasia of facial muscles has not been known except for the depressor
anguli oris muscle. Even, congenital unilateral
hypoplasia of the orbicularis oris muscle cause of unilateral upper lip palsy has
not been reported in the literature up to day. In this report, we present a patient with congenital unilateral upper lip palsy although
the facial nerve was normal.