| Literature DB >> 26160550 |
Daniel H van Raalte1, Susan M Goorden2, Evelien A Kemper3, Lodewijk A A Brosens4, Reinier W ten Kate1.
Abstract
Hypercalcaemia is frequently observed in patients with sarcoidosis. This is classically attributed to ectopic production of 1,25 dihydroxy vitamin D by sarcoid granulomas. We present a case of sarcoidosis-related hypercalcaemia with normal vitamin D levels. In this patient, production of parathyroid hormone-related peptide (PTHrp) was the cause for sarcoidosis-induced hypercalcaemia. As such, plasma PTHrp levels were increased and bone marrow granulomas stained positively for PTHrp expression. Medium-dose prednisolone treatment improved symptoms of sarcoidosis and normalised serum calcium, and PTHrp concentrations. Thus, production of PTHrp may be the cause for hypercalcaemia in some patients with sarcoidosis. 2015 BMJ Publishing Group Ltd.Entities:
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Year: 2015 PMID: 26160550 PMCID: PMC4499713 DOI: 10.1136/bcr-2015-210189
Source DB: PubMed Journal: BMJ Case Rep ISSN: 1757-790X