{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T15:17:30Z","timestamp":1759331850654,"version":"3.41.2"},"reference-count":15,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2024,1,19]],"date-time":"2024-01-19T00:00:00Z","timestamp":1705622400000},"content-version":"vor","delay-in-days":18,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,1,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Recurrent hyperparathyroidism (HPT) after initial parathyroid surgery occurs rarely in an ectopic location. The rare phenomenon of parathyromatosis may be the cause of this. We present the case of a 59-year-old woman with recurrent HPT, which presented as a new ectopic mediastinal parathyroid gland 13\u00a0years after initial 3.5 gland parathyroidectomy. A 1.5 \u00d7 1.3\u00a0cm lesion was discovered as an incidental finding in the pretracheal region, closely abutting the aortic arch. An aspirate revealed oncocytic cells, which were positive for parathyroid hormone, confirming a mediastinal parathyroid nodule. Sestamibi scan confirmed an avid nodule in the mediastinum. This patient had multiple co-morbidities but was asymptomatic of HPT. It was therefore decided at multi-disciplinary team discussion that she should undergo surveillance. To our knowledge, no such presentations have been reported in the literature. Thus, our case report is a unique addition of an atypical presentation of HPT.<\/jats:p>","DOI":"10.1093\/jscr\/rjad735","type":"journal-article","created":{"date-parts":[[2024,1,20]],"date-time":"2024-01-20T09:05:26Z","timestamp":1705741526000},"source":"Crossref","is-referenced-by-count":1,"title":["A case of mediastinal hyperparathyromatosis"],"prefix":"10.1093","volume":"2024","author":[{"given":"Chloe","family":"Spillane","sequence":"first","affiliation":[{"name":"Department of Surgery, Beaumont Hospital , Beaumont Road, Beaumont, Dublin 9, D09V2N0, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gavin","family":"Calpin","sequence":"additional","affiliation":[{"name":"Department of Surgery, Beaumont Hospital , Beaumont Road, Beaumont, Dublin 9, D09V2N0, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sneha","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Surgery, Beaumont Hospital , Beaumont Road, Beaumont, Dublin 9, D09V2N0, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kasie","family":"O\u2019Reilly","sequence":"additional","affiliation":[{"name":"Department of Surgery, Beaumont Hospital , Beaumont Road, Beaumont, Dublin 9, D09V2N0, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cian","family":"Hehir","sequence":"additional","affiliation":[{"name":"Department of Surgery, Beaumont Hospital , Beaumont Road, Beaumont, Dublin 9, D09V2N0, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arnold","family":"Hill","sequence":"additional","affiliation":[{"name":"Department of Surgery, Beaumont Hospital , Beaumont Road, Beaumont, Dublin 9, D09V2N0, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Colm","family":"Magee","sequence":"additional","affiliation":[{"name":"Department of Medicine, Beaumont Hospital , Beaumont Road, Beaumont, Dublin 9, D09V2N0, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Helen","family":"Barrett","sequence":"additional","affiliation":[{"name":"Department of Pathology, Beaumont Hospital , Beaumont Road, Beaumont, Dublin 9, D09V2N0, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2024,1,18]]},"reference":[{"key":"2024012009051180600_ref1","doi-asserted-by":"crossref","first-page":"1059828","DOI":"10.3389\/fendo.2022.1059828","article-title":"Advances in the treatment of secondary and tertiary hyperparathyroidism","volume":"13","author":"Zhang","year":"2022","journal-title":"Front Endocrinol"},{"key":"2024012009051180600_ref2","article-title":"Tertiary hyperparathyroidism: a review. 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