Bone Abstracts

Background: Infantile hypercalcemia occurs in ~15% of patients with Williams Syndrome (WS) and is typically mild. Severe hypercalcemia has been reported in infants/toddlers with WS, requiring treatment with intravenous (IV) saline hydration, furosemide, calcitonin, calcium and vitamin D restriction, and in some cases IV bisphosphonates.Presenting problem: Three cases of infants with WS age 9–13 months presented with severe hypercalcemia, failure to ...