Proboscis Lateralis : A Rare Bilateral Case in Association with Holoprosencephaly.

Proboscis lateralis is a very rare congenital craniofacial malformation characterized by a trunk like tubular appendage arising commonly from roof of the orbit near medial canthus. It may be seen as an isolated defect with sporadic occurrence or it may be associated with a spectrum of anomalies. It is usually unilateral and very few bilateral cases of proboscis lateralis have been reported in the literature worldwide. Alobar holoprosencephaly is commonly associated with a single central proboscis and cyclopia. Here we report an unusual case of a bilateral proboscis lateralis seen in association with holoprosencephaly.