PMID: 8587848Dec 1, 1995Paper

Two cases of micrognathia caused by radiation therapy during infancy: an evaluation of their profilograms

Nihon Igaku Hōshasen Gakkai zasshi. Nippon acta radiologica
Y NagataT Ohba

Abstract

Two patients with micrognathia of the mandible caused by radiation therapy during infancy are reported herein. The first patient was a 25-year-old man with hemangioma of the tongue. He had previously received radiation therapy totaling 51 Gy at 1 and 2 years of age. The other patient was a 54-year-old woman who had received radiation therapy for an oral tumor during infancy. These two patients demonstrated micrognathia, and the former patient showed developmental anomaly of the teeth. In addition, the latter patient suffered from thyroid cancer at 45 years of age, and this was also thought to be radiation-related. Although reports of micrognathia caused by radiation are rare, such late effects should be taken into account when radiation therapy is planned for head and neck tumors in infants.

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