Abstract Number: 2773 • 2017 ACR/ARHP Annual Meeting
Severe Juvenile Arthritis Associated with a De Novo Gain-of-Function Germline Mutation in MYD88
Background/Purpose: Using whole exome sequencing, we discovered a de novo heterozygous germline mutation in MYD88 (myeloid differentiation primary response 88) (c.666T>G, p.S222R) in a child…