A rare cause of nasolacrimal duct obstruction: dentigerous cyst in the maxillary sinus.
The most common abnormality of the lacrimal drainage system is congenital or acquired nasolacrimal duct obstruction. The causes of acquired nasolacrimal duct obstruction may be primary or secondary. The secondary acquired obstructions may result from infection, inflammation, neoplasm, trauma or mechanical causes. The maxillary sinus cysts usually obstruct the nasolacrimal duct mechanically. Dentigerous cysts are one of the main types of maxillary cysts. These cysts are benign odontogenic cysts which are associated with the crowns of unerupted teeth. The clinical documentations of mechanical nasolacrimal duct obstructions due to a dentigerous cyst in the maxillary sinus are very rare in literature. In this case report, we describe a dentigerous cyst with a supernumerary tooth in the maxillary sinus in an 11-year-old male child causing an obstruction to the nasolacrimal duct. The case was successfully managed surgically by Caldwell Luc approach.
Department of Ophthalmology and ENT, Khudiram Bose Sarani, R.G. Kar Medical College & Hospital, Kolkata, India. debabrata_dr@yahoo.com
Biswarup
B
Ray
Saumendra Nath
SN
Bandyopadhyay
Debabrata
D
Das
Bivas
B
Adhikary
D002648:Child; D003608:Dacryocystorhinostomy; D003803:Dentigerous Cyst / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D007767:Lacrimal Duct Obstruction / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D008443:Maxillary Sinus; D013517:Otorhinolaryngologic Surgical Procedures / Q000379:methods; D010254:Paranasal Sinus Diseases / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D014057:Tomography, X-Ray Computed