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[Nasal vestibular cyst: a report of forty two cases and investigation of its pathogenesis].

OBJECTIVE
To investigate the pathogenesis of nasal vestibular cyst.


METHOD
Forty two case of nasal vestibular cyst were retrospectively analyzed, including clinical manifestation, pathological findings, surgical therapy efficacy.


RESULT
Of these 42 cases of the type of lining epithelia, pseudostratified columnar epithelium was identified in 24 cases, stratified squamous epithelium in five cases, simple cuboidal epithelium in five cases, and two kinds of above mentioned epithelia in eight cases. Goblet cells were present in 23 cases. Surgical excision was performed via the labiogingival groove approach for all patients. The duration of follow-up ranged from 6 months to 10 years. No postoperative recurrences were found.


CONCLUSION
The abnormal development of nasolacrimal duct systems may take an important role in the pathogenesis of nasal vestibular cyst. According to this, we considered the total excision via the sublabial approach is more reasonable surgery than endoscopic marsupialization, but it is need further observation.