Cystic fibrosis presenting as bilateral maxillary mucoceles in an infant

A six months old male presented to our Otolaryngology Department with a long -standing history of chronic nasal congestion and difficulty of breathing. The child was initially treated with nasal steroids without improvements. On follow up investigations, bilateral sinus mucoceles were seen on CT scan. The diagnosis of cystic fibrosis was confirmed by the chloride sweat test and the child was taken to the operating room for functional endoscopic sinus surgery and marsupialization of mucoceles. The child's brother was then investigated and diagnosed with CF.