A report on malignant fibrous histiocytoma of the mandible in a 1 6/12-year-old boy, a condition rarely seen in children. Because of inoperability radiotherapy was used resulting in complete tumour remission. The clinical course was complicated by a tracheo-oesophageal fistula and aspiration pneumonia. The spontaneous closure of the fistula occurred 5 months after tracheostomy and catheter jejunostomy. After 2 10/12 years there is no evidence of tumour disease. Possibilities and problems of therapy are discussed.
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