Nasolacrimal duct obstruction and dacryocystocele associated with a conchabullosa mucocele

Purpose: To describe the rare occurrence of a concha bullosa mucocele produ cing secondary nasolacrimal duct obstruction and dacryocystocele. Design: Case report. Participant Forty-two-year-old man with 6-month histor y of left medial canthal mass. Intervention: Clinical evaluation with lacrimal testing, computed tomograph y and surgical exploration, including biopsy, dacryocystorhinostomy, and ex cision/marsupialization of the middle turbinate concha bullosa mucocele wer e performed. Results: The medial canthal mass was confirmed to be a dacryocystocele asso ciated with nasolacrimal duct obstruction and bone destruction caused by co ncha bullosa mucocele. Conclusions: Concha bullosa mucoceles are uncommon and even move rarely can produce secondary nasolacrimal duct obstruction and dacryocystocele format ion. The clinical and radiologic features may mimic a lacrimal sac malignan cy. (C) 2000 by the American Academy of Ophthalmology.