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  • Title: Delayed onset of hypopituitarism: sequelae of therapeutic irradiation of central nervous system, eye, and middle ear tumors.
    Author: Richards GE, Wara WM, Grumbach MM, Kaplan SL, Sheline GE, Conte FA.
    Journal: J Pediatr; 1976 Oct; 89(4):553-9. PubMed ID: 956997.
    Abstract:
    Four children with short stature who received irradiation to the head in conventional doses had clinical and laboratory evidence of hypothalamic-pituitary hormone deficiencies several years later. Growth hormone was deficient in all. One patient also had evidence of TSH, ACTH, and gonadotropin deficiency. Basal prolactin levels and prolactin response to synthetic TRF were normal in all patients tested. Treatment with human growth hormone significantly increased growth rate. We suggest that children should have the hypothalamic-pituitary area shielded from irradiation. Periodic measurements of hypothalamic-pituitary function should be performed in children who have had irradiation to the head, in order to detect and treat hormonal deficiencies before growth and development are seriously compromised.
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