Dacryocystocele with congenital unilateral lacrimal puncta agenesis in an adults.

Unilateral agenesis of the lacrimal puncta and enlargement of the lacrimal canal in adults are rare anatomic variants. We herein report a case of a 34-year-old woman with a unilateral dacryocystocele and lacrimal puncta agenesis. The patient had a long history of epiphora and visited the author's clinic for evaluation of a mass in her right medial canthal area that had been growing for the last 2 months. This article reports the results of the author's physical examinations, magnetic resonance imaging findings, and surgical treatment comprising dacryocystorhinostomy with silicone tubes. Six months after surgery, the patient's symptoms improved.