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Endocrine Status in 29 Patients Treated by Curative Radiation Therapy for Nasopharyngeal Carcinoma

The basal endocrine status of 29 patients treated with curative radiation therapy for nasopharyngeal carcinoma was assessed; they were disease-free for a minimum of 4 years from the end of treatment. None showed clinical evidence of endocrine disease, and most of them had a substantially normal hormonal blood pattern. A slightly elevated TSH value, suggesting subclinical primary hypothyroidism, was found only in two male patients, which could be ascribed to the radiotherapeutic treatment of the neck. Although we cannot exclude more subtle alterations of hypothalamic-pituitary function, the percentage incidence of endocrine impairment in our patients seems lower than previously reported by other authors.