Calcium pyrophosphate dihydrate crystals in a 9-year-old with osteomyelitis of the knee:A case report  

作　　者：William Pavlis David S Constantinescu Rajan Murgai Spencer Barnhill Brian Black 

机构地区：[1]Department of Orthopaedics,University of Miami,Miami,33136,United States

出　　处：《World Journal of Orthopedics》2022年第9期870-875,共6页世界骨科杂志（英文版）

摘　　要：BACKGROUND Calcium pyrophosphate dihydrate deposition disease(CPPD),or pseudogout,is an inflammatory arthritis common among elderly patients,but rarely seen in patients under the age of 40.In the rare cases presented of young patients with CPPD,genetic predisposition or related metabolic conditions were almost always identified.CASE SUMMARY The authors report the case of a 9-year-old boy with no past medical history who presented with acute knee pain and swelling after a cat scratch injury 5 d prior.Synovial fluid analysis identified calcium pyrophosphate dihydrate crystals.Further MRI analysis identified osteomyelitis and a small soft tissue abscess.CONCLUSION This case presents the extremely rare diagnostic finding of calcium pyrophosphate dihydrate crystals in a previously healthy pediatric patient.The presence of osteomyelitis presents a unique insight into the pathogenesis of these crystals in pediatric patients.More research needs to be done on the role of CPPD in pediatric arthritis and joint infection.

关 键 词：Calcium pyrophosphate PSEUDOGOUT PEDIATRICS CRYSTALS OSTEOMYELITIS Case report 

分 类 号：R726.8[医药卫生—儿科]