Malignant Schwannomas of the Ethmoid Sinus and the Larynx :Case Report and Review of Literatures / 대한치료방사선과학회지

ABSTRACT

The incidence of malignant schwannoma in the head and neck is extremly rate. Most tumors apper as a rapidly expanding nonpainful mass and the symptoms are usually attributablet to local expansion of the mass. About one half occurs in association with von Recklinghausen's disease. Wide surgical excision is generally recommended as a primary treatment. Recently, there has been a trend to include postoperative radiation therapy as a primary modality. Prognosis of head and neck malignant schwannoma has been reported as particularly poor. However, recent authors advocate that prolonged survival is possible after adequate therapy including postoperative radiation therapy.We present our experience with these tumors on very rare locations such as the ethmoid sinus and the larynx, with the review of literatures.