Paranasal Sinus Cysts Encountered Over Twenty Years: Varieties, Management, Recommendations, and Outcome

Abstract

Background: We recorded all cases presenting with paranasal sinus cysts to draw attention to those with unusual presentations
and their management outcome in a retrospective original study.
Methods: All patients were subjected to history-taking, ENT examination, endoscopic examination, CT scanning, and managed
with endoscopic sinus surgery/or a combined approach.
Results: We encountered 54 patients with paranasal sinus cysts. Mucocele/pyocele was the commonest (79.6%), followed by
radicular cyst (9.3%), dentigerous cyst (5.55%), and fungocele (5.55%). The frontal sinus was the commonest sinus of cyst
origin (55.6%). Maxillary sinus cysts occurred in 16.6% of cases. The sphenoid sinus was the "least" sinus of cyst origin in
7.4% of cases.
Conclusion: Ethmoid mucocele occurred mostly by extension from other sinuses, predominantly frontal. With exclusive
frontal sinus cysts, it is essential to look for possible underlying pathology or associated complication. Fungocele, a new
nomenclature, could complicate those with allergic fungal sinusitis.