Endocrine Abstracts

CaSR-autoantibodies may cause auto-immune hypercalcemia through either simple blocking or biased properties. The phenotype of this rare disease is most often acquired hypocalciuric hypercalcemia (AAH) (Minanbres JCEM 2020, Makita JCI insight 2022), but sometimes hyperparathyroidism (Pelletier-Morel Intern Med 2008), in elderly. Gender, auto-immune context is variable. Blood calcium may fluctuate, and acute exacerbations may be successfully treated with predni...

Adipsic hypernatremia, a rare hypothalamic disorder characterized by a loss of thirst in response to hypernatremia is more often reported in children. An autoimmune mechanism has been recently demonstrated. We report two cases.Case1: A lean 67-year-old female, with a history of multilocular sclerosis, was admitted, for severe hypernatremia (162 mmol/l) with low ADH level (0.5 pmol/l; N: 0.5-2). She did not complain of thirst, despite ideomotor slowing an...