AUTHOR=Wendt Ralph , Heller Marie , Härtwig Daniel , Ullmann Sven Oliver , Bisanz Heike , Geister Daniela , Mantovani Luisa , Hoffmann Ulrike TITLE=Case report: Ectopic production of intact parathyroid hormone (iPTH) by malignoma mimicking primary hyperparathyroidism JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2024 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1422131 DOI=10.3389/fonc.2024.1422131 ISSN=2234-943X