Edward M. Brown
The system that regulates extracellular calcium (Ca2+o) homeostasis maintains a nearly constant level of Ca2+o so as to ensure the availability of calcium for its numerous intra- and extracellular roles. The molecular cloning and characterization of a G protein-coupled, Ca2+o-sensing receptor has elucidated the mechanism through which parathyroid cells …
Salvatore Maria Corsello, Rosa Maria Paragliola, Pietro Locantore, Francesca Ingraudo, Maria Pia Ricciato, Carlo Antonio Rota, Paola Senes, Alfredo Pontecorvi
Zoledronic acid is a newly FDA-approved bisphosphonate for the treatment of hypercalcemia of malignancy. Although the safety and efficacy of this drug in treating hypercalcemia associated with hyperparathyroidism have not yet been established in clinically controlled trials, its off-label use is not uncommon …
Alfredo Campennì, Rosaria Maddalena Ruggeri, Alessandro Sindoni, Salvatore Giovinazzo, Letterio Calbo, Antonio Ieni, Maurizio Monaco, Giovanni Tuccari, Salvatore Benvenga, Sergio Baldari
Parathyroid carcinoma (PC) is a rare malignancy with an indolent but progressive course. This rare tumour is often difficult to diagnose preoperatively, thus limiting the efficacy of surgery. As long-term survival is largely dependent on the extent of the primary surgical resection …
Mehmet Kirnap, Mustafa Calis, Cumali Gokce, Selim Kurtoglu, Mustafa Ozturk, Fahrettin Kelestimur
An 18-year-old man was admitted to the clinic complaining of deterioration in the function of his hands and feet. The clinical examination revealed that his movements were clumsy and that he had disproportionally short limbs. In addition, he also had facial abnormalities of frontal bossing …
Claudia Battista, Raffaella Viti, Salvatore Minisola, Iacopo Chiodini, Vincenzo Frusciante, Alfredo Scillitani, Vincenzo Carnevale
OBJECTIVE: To describe the biochemical effects of an over-supplementation of vitamin D3 in two patients with primary hyperparathyroidism (PHPT). DESIGN: Two patients (A and B) with PHPT took erroneously 2,400,000U …
Carlos del Pozo, Luis García-Pascual, Montserrat Balsells, María-José Barahona, Enrique Veloso, Clarisa González, Jordi Anglada-Barceló
Parathyroid carcinoma is an infrequent cause of primary hyperparathyroidism. Although hyperparathyroidism in multiple endocrine neoplasia 1 (MEN1) syndrome is the most common manifestation, parathyroid carcinoma is rare. We report a male patient who was diagnosed at 44 years of age with parathyroid carcinoma in the context of MEN1 syndrome coincident …