Nasal vestibule schwannoma: report of a rare case.

Schwannomas of the nasal cavity and paranasal sinuses are quite rare, especially in the nasal vestibule. We report the case of a 61-year-old woman who presented with a 2-month history of progressively worsening right-sided epistaxis and nasal blockage. Rigid nasoendoscopy showed a mobile, smooth, globular mass occupying the right nasal vestibule. The mass arose from the lateral nasal wall and impinged on the anterior part of the middle turbinate posteriorly. Computed tomography of the paranasal sinuses showed a 3.8 × 1.7-cm enhancing mass in the right nostril. The mass obliterated the nasal cavity and caused mild deviation of the septum. The preoperative histopathologic examination showed positivity for vimentin and S-100 protein, suggesting a diagnosis of schwannoma. The patient underwent an intranasal laser-assisted excision biopsy. The histopathologic examination confirmed the diagnosis of schwannoma. Postoperative recovery was uneventful, and no recurrence was seen in the follow-up period.