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Congenital pyriform aperture stenosis should be suspected whenever there is both severe nasal obstruction and difficulty in passing a small catheter or nasogastric tube through the anterior nasal valve. Operation is the most extreme treatment, but it is effective for congenital pyriform aperture stenosis. Nasal stenting for 7 days seemed to be adequate. The use of three-dimensional computed tomography to evaluate preoperative and postoperative nasal pyriform aperture is effective and reliable.

Most schwannomas of the hypoglossal nerve originate from the intracranial portion, but they may extend extracranially. Solitary and extracranial schwannomas are extremely rare. We report a case of submandibular hypoglossal schwannoma along with its clinical course and management.

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