PurposeDacryoliths located in the temporal canthus were relatively rare. We presented a case of giant ductule dacryolith associated with Haemophilus influenzae and described the clinical features.Case presentationA 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 ductule dacryolith 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.ConclusionDuctule dacryoliths are very rare but worth considering when a patient presents with unilateral lateral refractory conjunctivitis.
基金：
Beijing Hospitals Authority's Ascent Plan [DFL20240202]; Youth Beijing Scholars program [022]; Beijing Municipal Public Welfare Development and Reform Pilot Project for Medical Research Institutes (PWDRPP-MRI) [JYY2023-6]
第一作者机构：[1]Capital Med Univ, Beijing Tongren Hosp, Beijing Tongren Eye Ctr, Beijing Ophthalmol & Visual Sci Key Lab, 1 Dong Jiao Min Xiang, Beijing 100730, Peoples R China
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推荐引用方式(GB/T 7714)：
Li Shang,Huang Yuyan,Zhang Yang,et al.A ductule dacryolith misdiagnosed as refractory conjunctivitis: a case report[J].BMC OPHTHALMOLOGY.2025,25(1):doi:10.1186/s12886-025-04287-2.
APA：
Li, Shang,Huang, Yuyan,Zhang, Yang,Zhang, Xu&Jie, Ying.(2025).A ductule dacryolith misdiagnosed as refractory conjunctivitis: a case report.BMC OPHTHALMOLOGY,25,(1)
MLA：
Li, Shang,et al."A ductule dacryolith misdiagnosed as refractory conjunctivitis: a case report".BMC OPHTHALMOLOGY 25..1(2025)
