A Lacrimal Gland Duct Stones Misdiagnosed as Refractory Conjunctivitis: A Case Report

Purpose: Stones located in the temporal canthus were relatively rare. We presented a case of giant lacrimal duct stone associated with Haemophiles influenzae and described the clinical features. Case presentation: A female patient presented persistent secretion in the lateral canthal region of the right eye. Surgical exploration was performed, and bacterial culture, tissue pathology analysis and magnetic resonance imaging (MRI) examination were completed. A huge stone was found in the temporal canthus, which was composed of amorphous acidic substances. The bacterial culture results showed infection with Haemophilus influenzae, and the postoperative MRI results showed no signs of inflammation around the lacrimal gland. The patient's symptoms disappeared immediately after the operation. Conclusion: Lacrimal duct stone was a very rare diagnosis but worth considering when a patient presented a unilateral lateral refractory conjunctivitis.