title: A case of hypocalciuric hypercalcemia without family history.
abstract: Familial hypocalciuric hypercalcemia (FHH) is usually characterized by asymptomatic hypercalcemia, mild hypermagnesemia, and low urinary calcium excretion, and is occasionally associated with pulmonary fibrosis. It is inherited as an autosomal-dominant, and no sporadic case of hypocalciuric hypercalcemia has been heretofore reported. This report describes a patient with hypocalciuric hypercalcemia completely compatible with FHH but with no family history, suggesting that the most likely diagnosis is "nonfamilial" hypocalciuric hypercalcemia. We propose that the urinary excretion of calcium be examined in all patients with hypercalcemia, hypophosphatemia, and increased PTH before neck surgery, even if patients have no family history of hypercalcemia.
authors.affiliation: Department of Medicine, Tokyo Women's Medical College, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Ujihara
authors.forename: K
authors.initials: K
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Ohashi
authors.forename: N
authors.initials: N
authors.lastname: Tomori
authors.forename: K
authors.initials: K
authors.lastname: Kasono
authors.forename: T
authors.initials: T
authors.lastname: Tsushima
authors.forename: H
authors.initials: H
authors.lastname: Demura
mesh_terms: D000368:Aged; D002118:Calcium / Q000652:urine*; D003937:Diagnosis, Differential; D005192:Family Health; D005260:Female; D006801:Humans; D006934:Hypercalcemia / Q000150:complications / Q000175:diagnosis* / Q000235:genetics*; D008274:Magnesium / Q000097:blood; D008297:Male; D010281:Parathyroid Hormone / Q000097:blood; D010375:Pedigree; D010710:Phosphates / Q000097:blood; D011658:Pulmonary Fibrosis / Q000150:complications
chemical_list: D010281:Parathyroid Hormone; D010710:Phosphates; D008274:Magnesium; D002118:Calcium