TY - JOUR T1 - Case of knee swelling JF - Archives of disease in childhood - Education & practice edition JO - Arch Dis Child Educ Pract Ed DO - 10.1136/archdischild-2018-316268 SP - edpract-2018-316268 AU - Sarah Williamson AU - Subramanian Mahadevan-Bava Y1 - 2019/02/01 UR - http://ep.bmj.com/content/early/2019/02/01/archdischild-2018-316268.abstract N2 - QuestionsWhat does the X-ray show?InfectionPeriarticular soft tissue calcificationArtefactGout What condition is associated with these radiological findings?Tumorous calcinosisSynovial sarcomaChronic renal failureJuvenile dermatomyositisAll of the above What biochemical abnormality is seen in this condition?Low calciumRaised calciumRaised or normal phosphateNone of the above What is the most appropriate treatment?Normalisation of any biochemical abnormalitiesSurgical excisionConservative managementAll of the above Questions Answers can be found on page 2. ER -