hrp0095p1-232 | Bone, Growth Plate and Mineral Metabolism | ESPE2022

Beyond Genetics: Three Sisters with Pseudoypoparathyroidism 1A

Sippelli Fabio , Corica Domenico , Ferraloro Chiara , Romeo Mery , De Sanctis Luisa , Aversa Tommaso , Briuglia Silvana , Wasniewska Malgorzata

Pseudohypoparathyroidism (PHP) is an hereditary disorder characterized by resistance to parathyroid hormone (PTH) and in varying degrees to TSH, GHRH and FSH/LH, and caused by loss-of-function mutations in the GNAS gene, encoding the membrane protein Gs-alpha. Pathognomonic of these patients is a dysmorphic phenotype, called Albright's Osteodystrophy, which includes short stature, obesity, round face, mental delay, subcutaneous ossifications and brachydactyly. The most fr...

hrp0095p1-130 | Growth and Syndromes | ESPE2022

Osteogenesis imperfecta / Ehlers–Danlos (OI/EDS) overlap syndrome associated with a new COL1A1 variant (c.3235G>A, p.Gly1079Ser) in a girl with severe short stature and neuroblastoma

Letteria Anna Morabito , Elsa Maria Allegri Anna , Paola Capra Anna , Corica Domenico , Capasso Mario , Capra Valeria , Garaventa Alberto , Maghnie Mohamad , Briuglia Silvana , Gabriela Wasniewska Malgorzata

Background: Osteogenesis imperfecta / Ehlers–Danlos (OI/EDS) overlap syndrome is a rare and recently described disorder of connective tissue, characterized by mutation of COL1A1 (17q21.33) or COL1A2 (7q21.3) genes, involved in alpha-1 and alpha-2 chains of type 1 collagen synthesis. Patients with OI/EDS overlap syndrome could show a phenotype characterized by features of both osteogenesis imperfecta (bone fragility, long bone fractures, blue sclerae, sho...