A case of cervical schwannoma with upper tracheal stenosis followed up as asthma for 4 years.

Cases of upper tracheal stenosis due to cervical schwannoma are fairly rare; therefore, no treatment has been determined. In this case, our patient had been treated for asthma for 4 years and was admitted to our hospital because of exacerbation. Computed tomography showed a tracheal stenosis lesion just below the vocal cords, and a biopsy revealed schwannoma.