Yamasoba T, Sugimura H
Department of Otolaryngology, University of Tokyo, Japan.
ORL J Otorhinolaryngol Relat Spec. 1996 Nov-Dec;58(6):311-4. doi: 10.1159/000276861.
A cyst of the nasolacrimal drainage system (NLDS) is rare in an adult. We report a case in a 29-year-old man of a mucous retention cyst of the NLDS, which appeared 2 years after the patient developed dacryocystitis coincident with an aggravation of chronic sinusitis. The lesion was successfully managed by removing the bony wall of the NLDS at the interface with the ethmoid and nasal cavity, as well as the membranous closure of the ostium of the common canaliculus. We speculate that the cyst development might have been initiated by inflammatory change such as mucosal adhesion in the NLDS resulting from the spread of secondary infection from the sinonasal tract.
成人鼻泪引流系统（NLDS）囊肿较为罕见。我们报告一例29岁男性的NLDS黏液潴留囊肿病例，该囊肿在患者患泪囊炎且慢性鼻窦炎加重2年后出现。通过切除NLDS与筛窦和鼻腔交界处的骨壁以及共同泪小管开口的膜性封闭，成功处理了该病变。我们推测囊肿的形成可能是由鼻鼻窦感染扩散引起的NLDS黏膜粘连等炎症变化引发的。
