{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,11]],"date-time":"2026-07-11T04:08:05Z","timestamp":1783742885444,"version":"3.55.0"},"reference-count":29,"publisher":"The Endocrine Society","issue":"8","license":[{"start":{"date-parts":[[2022,5,4]],"date-time":"2022-05-04T00:00:00Z","timestamp":1651622400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"name":"Albert Beckers by the Fonds d\u2019Investissment pour la Recherche"},{"name":"Centre Hospitalier Universitaire de Liege","award":["2018-2020"],"award-info":[{"award-number":["2018-2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,7,14]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Context<\/jats:title>\n                  <jats:p>Ectopic acromegaly is a consequence of rare neuroendocrine tumors (NETs) that secrete GHRH. This abnormal GHRH secretion drives GH and IGF-1 excess, with a clinical presentation similar to classical pituitary acromegaly. Identifying the underlying cause for the GH hypersecretion in the setting of ectopic GHRH excess is, however, essential for proper management both of acromegaly and the NET. Owing to the rarity of NETs, the imaging characteristics of the pituitary in ectopic acromegaly have not been analyzed in depth in a large series.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Objective<\/jats:title>\n                  <jats:p>Characterize pituitary magnetic resonance imaging (MRI) features at baseline and after NET treatment in patients with ectopic acromegaly.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Design<\/jats:title>\n                  <jats:p>Multicenter, international, retrospective.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Setting<\/jats:title>\n                  <jats:p>Tertiary referral pituitary centers.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Patients<\/jats:title>\n                  <jats:p>Thirty ectopic acromegaly patients having GHRH hypersecretion.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Intervention<\/jats:title>\n                  <jats:p>None.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Main outcome measure<\/jats:title>\n                  <jats:p>MRI characteristics of pituitary gland, particularly T2-weighted signal.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>In 30 patients with ectopic GHRH-induced acromegaly, we found that most patients had hyperplastic pituitaries. Hyperplasia was usually moderate but was occasionally subtle, with only small volume increases compared with normal ranges for age and sex. T2-weighted signal was hypointense in most patients, especially in those with hyperplastic pituitaries. After treatment of the NET, pituitary size diminished and T2-weighted signal tended to normalize.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>This comprehensive study of pituitary MRI characteristics in ectopic acromegaly underlines the utility of performing T2-weighted sequences in the MRI evaluation of patients with acromegaly as an additional tool that can help to establish the correct diagnosis.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1210\/clinem\/dgac274","type":"journal-article","created":{"date-parts":[[2022,5,5]],"date-time":"2022-05-05T20:36:14Z","timestamp":1651782974000},"page":"e3313-e3320","source":"Crossref","is-referenced-by-count":22,"title":["Pituitary MRI Features in Acromegaly Resulting From Ectopic GHRH Secretion From a Neuroendocrine Tumor: Analysis of 30 Cases"],"prefix":"10.1210","volume":"107","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9045-0157","authenticated-orcid":false,"given":"Iulia","family":"Potorac","sequence":"first","affiliation":[{"name":"Departments of Endocrinology, Centre Hospitalier de Li\u00e8ge, Universit\u00e9 de Li\u00e8ge, Domaine Universitaire du Sart Tilman , 4000 Li\u00e8ge , Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9562-4793","authenticated-orcid":false,"given":"Jean-Fran\u00e7ois","family":"Bonneville","sequence":"additional","affiliation":[{"name":"Departments of Endocrinology, Centre Hospitalier de Li\u00e8ge, Universit\u00e9 de Li\u00e8ge, Domaine Universitaire du Sart Tilman , 4000 Li\u00e8ge , Belgium"},{"name":"Medical Imaging, Centre Hospitalier de Li\u00e8ge, Universit\u00e9 de Li\u00e8ge, Domaine Universitaire du Sart Tilman , 4000 Li\u00e8ge , 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