Abstract
Endocrine complications after radiotherapy are usually delayed and require prolonged follow-up by the radiation oncologist. Endocrine glands are dispersed throughout the body and can be included in the radiation field of several tumors. As the symptomatology can sometimes be insidious and non-specific, their screening is based on a directed clinical examination but also on systematic hormonal assays. The thyroid gland is particularly radiosensitive, and hypothyroidism is generally observed for doses of more than 30Gy. After cervical irradiation, it is recommended to perform a TSH assay every 6 to 12months. The risk of secondary thyroid cancer only concerns children and exists even at low doses, systematic screening is required. The risk of pituitary insufficiency is dose-dependent, with different sensitivity for each axis. In children, the main concern is the early detection of somatotropic insufficiency in order to prevent the risk of short stature. Reproductive function can be impaired after receiving 4–6Gy requiring fertility preservation. Endocrine side effects can be treated to improve quality of life; therefore, we propose several approaches to be followed in order to promote screening and treatment.
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