Nasolacrimal Duct Obstruction Caused by Dacryolith With Secondary Infectious Dacryocystitis in a Cat: A Case Report.

IF 1.3 4区农林科学 Q2 VETERINARY SCIENCES

Veterinary ophthalmology Pub Date : 2025-09-25 DOI:10.1111/vop.70084

Jean-Baptiste Barbry, Pauline Striffler, Anne-Sophie Poinsard, Olivier Balland

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Abstract

Objective: To describe the clinical features, diagnostic imaging, surgical management, and mineralogical findings of a nasolacrimal duct (NLD) obstruction caused by a dacryolith with secondary infectious dacryocystitis in a cat.

Methods: A 6-month-old European Shorthair male cat was presented with chronic mucopurulent discharge from the right eye. Ophthalmic examination, NLD irrigation, computed tomography (CT), dacryocystotomy, bacterial culture, and mineral analysis were performed.

Results: CT revealed a calcified opacity in the right NLD consistent with a dacryolith. Simple CT identified the calcification, and CT-dacryocystorhinography (CT-DCG) confirmed a filling defect at this site while showing partial duct patency. Dacryocystotomy allowed removal of a tan, firm, mineralized concretion composed of calcium phosphate. Pasteurella sp. was cultured from the surrounding exudate. Clinical signs resolved postoperatively, with no recurrence observed at 8-month follow-up.

Conclusions: This case documents the first reported feline dacryolith, underscoring the diagnostic value of advanced imaging and the therapeutic benefit of dacryocystotomy. Although the mineral composition is established, the pathogenesis remains unclear.

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鼻泪管梗阻并发继发性感染性泪囊炎1例。

目的：描述猫鼻泪管阻塞（NLD）由泪石合并继发性感染性泪囊炎的临床特征、诊断影像学、手术处理和矿物学表现。方法：对一只6月龄欧洲短毛公猫右眼慢性黏液化脓性分泌物进行分析。眼科检查，NLD冲洗，计算机断层扫描（CT），泪囊切开术，细菌培养和矿物分析。结果：CT显示右侧NLD呈钙化混浊，与泪石一致。单纯CT发现钙化，CT-泪囊造影（CT- dcg）证实该部位充盈缺损，同时显示部分导管通畅。泪囊切开术可以去除由磷酸钙组成的褐色、坚硬、矿化的结块。从周围渗出液中培养巴氏杆菌。术后临床症状消失，随访8个月无复发。结论：本病例首次报道了猫科动物泪囊结石，强调了先进影像学的诊断价值和泪囊切开术的治疗价值。虽然矿物质成分已确定，但发病机制尚不清楚。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Veterinary ophthalmology 农林科学-兽医学

CiteScore

2.70

自引率

37.50%

发文量

审稿时长

12-24 weeks

期刊介绍： Veterinary Ophthalmology is a peer-reviewed, international journal that welcomes submission of manuscripts directed towards academic researchers of veterinary ophthalmology, specialists and general practitioners with a strong ophthalmology interest. Articles include those relating to all aspects of: Clinical and investigational veterinary and comparative ophthalmology; Prospective and retrospective studies or reviews of naturally occurring ocular disease in veterinary species; Experimental models of both animal and human ocular disease in veterinary species; Anatomic studies of the animal eye; Physiological studies of the animal eye; Pharmacological studies of the animal eye.