Nasal schwannoma

Two cases of neurilemmoma in the nasal vestibule: A case report and literature review

RATIONALE

Neurilemmoma is a benign tumor derived from the Schwann cells of the nerve sheath. The highest incidence of neurilemmoma occurs in the head and neck region; however, the nose and paranasal sinuses are rarely involved. Less than 4% of these tumors involve the nasal cavity and paranasal sinuses. To date, only six cases of nasal vestibule neurilemmoma have been reported.

PATIENT CONCERNS

Two patients (a 32-year-old man and a 42-year-old woman) visited our clinic with complaint of a lump in the left nasal vestibule.

DIAGNOSIS

Histopathological examination and immunohistochemical staining confirmed a neurilemmoma.

INTERVENTIONS

The mass was completely removed via an intranasal approach.

OUTCOMES AND LESSONS

Neurilemmoma is easy to overlook because it occurs rarely in the nasal vestibule, but neurilemmoma needs to be considered as a differential diagnosis.

Solitary nasal schwannoma clinically presenting as an angiofibroma of the nasopharynx

Benign schwannomas of the nasal cavity are rare. When they do occur, their clinical presentation is variable, and some are fairly vascular. We report the case of a 17-year-old boy who presented with epistaxis associated with a unilateral nasal mass that extended into the nasopharynx. The tumor was removed via a transpalatal approach. In most such cases, a clinical diagnosis of angiofibroma is made. In this case, however, histopathologic examination identified the lesion as a schwannoma.