Proboscis Lateralis

Abstract

A 9-month-old male child born out of nonconsanguineous marriage was brought with the history of abnormally bisected nose since birth (Fig. 1). On examination, the child was able to fix and follow the light in each eye separately, but because of the broad nasal bridge, there was pseudoesotropia. Anterior segment and fundus examination was essentially within normal limits. The external nasal openings were widely displaced on either side with a broad sheet of skin between them; nasal examination revealed patent nasal openings on each side, which were independently opening in the nasopharynx and the nasolacrimal system on each side was patent.Figure 1.: Proboscis Lateralis with deformed nose.There are 4 groups of proboscis lateralis (proboscis is a blind ended tube-like structure located in the midface) according to Khoo. Group I affected individuals will have proboscis lateralis with a normal nose. Group II individuals will have proboscis lateralis with an ipsilateral deformed nose. Similarly, Group III patients will have proboscis lateralis with an ipsilateral deformed nose, eye, and ocular adnexa and Group IV patients have an ipsilateral deformed nose, eye, ocular adnexa, and cleft lip or palate.