Background – Congenital hypoplasia of depressor angularis oris muscle (CHDAOM), which is often confused with unilateral facial nerve palsy, is
a rare congenital disorder presenting with asymmetric crying facies in a newborn. Accurate diagnosis of this condition is imperative in order to
ensure further screening to rule out associated anomalies and appropriate management. We report a late preterm male Clinical description –
neonate who was noticed to have facial asymmetry selectively during episodes of crying. During quiet or sleeping state, the face was symmetrical.
Clinical examination did not reveal any other facial abnormality or any evidence of facial nerve palsy. Associated anomalies were Management –
ruled out by thorough evaluation. In view of isolated CHDAOM, parents were explained regarding benign course of the condition. The neonate was
discharged after an uneventful hospital stay. This case report emphasizes the importance of a Conclusion – detailed clinical examination in the
diagnosis of CHDOAM. CHDOAM, if occurring in isolation, is a benign condition and does not require any intervention. Parental counselling is
the cornerstone of management. However, the diagnosis of CHDAOM should raise suspicion for other associated congenital anomalies and
warrants a thorough evaluation.
Facial nerve palsy caused by T cell lymphoma