@AmandaOmbrello from ⁦@NIH_NIAMS⁩ at #ACR19 : #Rheumatologists... Have you come across Adult-Onset Sporadic #PolyarteritisNodosa ?... 🚨 Don’t forget to check for ADA2 mutation!!! 🚨 @ACRheum @RheumNow https://t.co/1MP0wsD6Vr