A Congenital Nasal Mass Causing Respiratory Distress

A neonate had noisy breathing and nasal congestion; physical examination revealed significant distress,and retractions, and a mucosalized mass filling the left nasal cavity was visualized on anterior rhinoscopy, requiring nasal stenting to relieve obstruction. What is your diagnosis?
Source: JAMA Otolaryngology - Head and Neck Surgery - Category: ENT & OMF Source Type: research