title: Radiation-induced hypopituitarism.
abstract: The hypothalamic-pituitary unit is a particularly radiosensitive region in the central nervous system. As a consequence, hypopituitarism commonly develops after radiation treatments for sellar and parasellar neoplasms, extrasellar brain tumours, head and neck tumours, and following whole body irradiation for systemic malignancies. Increasing tumour-related survival rates provide an expanding population at risk of developing hypopituitarism. In this population, long-term monitoring tailored to the individual risk profile is required to avoid the sequelae of untreated pituitary hormonal deficiencies and resultant decrease in the quality of life. This review analyses the pathogenesis, prevalence and consequences of radiation-induced hypopituitarism (RIH) in diverse subgroups at risk. Also discussed is the impact of modern radiotherapy techniques in the prevalence of RIH, the spectrum of endocrine disorders and radiation-induced brain conditions that also occur in patients with RIH.
authors.affiliation: Department of Endocrinology, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Old Road, Headington, Oxford OX3 7LE, UK.
authors.forename: Alberto
authors.initials: A
authors.lastname: Fernandez
authors.forename: Michael
authors.initials: M
authors.lastname: Brada
authors.forename: Lina
authors.initials: L
authors.lastname: Zabuliene
authors.forename: Niki
authors.initials: N
authors.lastname: Karavitaki
authors.forename: John A H
authors.initials: JA
authors.lastname: Wass
mesh_terms: D004700:Endocrine System Diseases / Q000209:etiology; D006801:Humans; D007018:Hypopituitarism / Q000150:complications / Q000453:epidemiology / Q000209:etiology* / Q000401:mortality; D007030:Hypothalamo-Hypophyseal System / Q000528:radiation effects; D011832:Radiation Injuries / Q000150:complications* / Q000453:epidemiology / Q000401:mortality; D011878:Radiotherapy / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods; D011879:Radiotherapy Dosage