PT - JOURNAL ARTICLE AU - Ben C Reynolds AU - Tim D Cheetham TI - Bones, stones, moans and groans: hypercalcaemia revisited AID - 10.1136/archdischild-2013-305406 DP - 2015 Feb 01 TA - Archives of disease in childhood - Education & practice edition PG - 44--51 VI - 100 IP - 1 4099 - http://ep.bmj.com/content/100/1/44.short 4100 - http://ep.bmj.com/content/100/1/44.full SO - Arch Dis Child Educ Pract Ed2015 Feb 01; 100 AB - Disorders of calcium homeostasis are uncommon but important because of the broad spectrum of potential underlying causes that lie on a spectrum from the benign to the life-threatening. Paediatricians may find them challenging because they do not arise often enough for the investigative approach to be second nature. We report a 4-year-old with acute onset profound hypercalcaemia. We focus on an approach to the clinical problem that is based on the potential organ systems affected, namely the gut, bone and kidney. Key biochemical parameters that may help the paediatric team to reach a diagnosis are discussed, as well as important components of acute management.