Nasolacrimal duct obstruction and dacryocystocele associated with a concha bullosa mucocele.

Abstract

To describe the rare occurrence of a concha bullosa mucocele producing secondary nasolacrimal duct obstruction and dacryocystocele. Case report. Forty-two-year-old man with 6-month history of left medial canthal mass. Clinical evaluation with lacrimal testing, computed tomography and surgical exploration, including biopsy, dacryocystorhinostomy, and excision/marsupialization of the middle turbinate concha bullosa mucocele were performed. The medial canthal mass was confirmed to be a dacryocystocele associated with nasolacrimal duct obstruction and bone destruction caused by concha bullosa mucocele. Concha bullosa mucoceles are uncommon and even more rarely can produce secondary nasolacrimal duct obstruction and dacryocystocele formation. The clinical and radiologic features may mimic a lacrimal sac malignancy.