caa a22 4500 475754182 CHVBK 20180406123533.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1007/s005950070022 doi (NATIONALLICENCE)springer-10.1007/s005950070022 Persistent Hypocalcemia with Elevated Parathyroid Hormone Levels After Long-Term Primary Hyperparathyroidism: Report of a Case [Elektronische Daten] [Markus Heuser, Peter Markus, Silvia Obenauer, Michael Hüfner, Heinz Becker] We report herein the case of a 48-year-old man with long-term persistent primary hyperparathyroidism (pHPT) despite undergoing a parathyroidectomy in 1976, followed by a reoperation in 1978, for whom resection of a parathyroid adenoma in the upper mediastinum was eventually performed. His postoperative course was complicated by recurrent hypocalcemia refractory to oral calcium substitution and significantly elevated levels of parathyroid hormone (PTH). The radiological findings are presented, and we discuss the possible reasons for the coincidence of severe hypocalcemia with increased PTH levels in association with pHPT. Springer-Verlag, 2000 Key words Hyperparathyroidism nationallicence Endocrinology nationallicence Hypercalcemia nationallicence Parathyroid gland nationallicence Heuser Markus Department of General Surgery, aut Markus Peter Department of General Surgery, aut Obenauer Silvia Department of Diagnostic Radiology, Georg-August-University, Robert-Koch-Strasse 40 D-37 070 Göttingen, Germany, DE aut Hüfner Michael Department of Endocrinology, and aut Becker Heinz Department of General Surgery, aut https://doi.org/10.1007/s005950070022 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005950070022 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Heuser Markus Department of General Surgery aut NATIONALLICENCE 700 1- Markus Peter Department of General Surgery aut NATIONALLICENCE 700 1- Obenauer Silvia Department of Diagnostic Radiology, Georg-August-University, Robert-Koch-Strasse 40 D-37 070 Göttingen, Germany, DE aut NATIONALLICENCE 700 1- Hüfner Michael Department of Endocrinology, and aut NATIONALLICENCE 700 1- Becker Heinz Department of General Surgery aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer