title: Ectopic calcification as discernible manifestation in neonates with pseudohypoparathyroidism type 1a.
abstract: The diagnosis of pseudohypoparathyroidism type 1a (PHP1a) is challenging, because both the osteodystrophy, such as brachydactyly and round face, and the symptomatic hypocalcemia usually develop beyond infancy. Although ectopic calcification may be an early sign of PHP1a, there are no systematic reviews regarding the time of its appearance. We here report on two PHP1a patients who presented with subcutaneous calcification in neonatal period.
authors.affiliation: Department of Endocrinology & Metabolism, Clinical Research Institute, Kanagawa Children's Medical Center, Yokohama 232-8555, Japan.
authors.forename: Masanori
authors.initials: M
authors.lastname: Adachi
authors.forename: Koji
authors.initials: K
authors.lastname: Muroya
authors.forename: Yumi
authors.initials: Y
authors.lastname: Asakura
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Kondoh
authors.forename: Jun
authors.initials: J
authors.lastname: Ishihara
authors.forename: Tomonobu
authors.initials: T
authors.lastname: Hasegawa