[Osteosarcoma of the larynx]

A case of osteosarcoma of the soft tissues of the larynx of a 65 years old man is presented. Adequate surgical excision of the tumour was impossible because the patient had advanced cerebral and coronary vascular disease. Radiation therapy produced no remission of the tumour. The light microscopic findings are described and discussed. This is the sixth recorded case of osteosarcoma of the larynx.