Hemophagocytic lymphohistiocytosis (HLH) is a rare, life-threatening state of immune
hyperactivation that arises in the setting of genetic mutations and infectious, inflammatory, or …

Objective To develop criteria for the classification of macrophage activation syndrome (MAS)
in patients with systemic juvenile idiopathic arthritis (JIA). Methods A multistep process, …

Systemic juvenile idiopathic arthritis (SJIA) is a disease marked with arthritis and several
features of systemic inflammation including fevers, rashes, hepatosplenomegaly, …

Objective To provide updated guidelines for pharmacologic management of juvenile
idiopathic arthritis (JIA), focusing on treatment of oligoarthritis, temporomandibular joint (TMJ) …

Objective To describe the clinical, laboratory, and histopathologic features, current treatment,
and outcome of patients with macrophage activation syndrome (MAS) complicating …

Juvenile idiopathic arthritis is a common rheumatic disease that presents as chronic childhood
arthritis. JIA is considered a multifactorial disease that may result from diverse genetic …

Recent therapeutic advances in juvenile idiopathic arthritis (JIA) have made remission an
achievable goal for most patients. Reaching this target leads to improved outcomes. The …

Objective To uniquely classify children with microscopic polyangiitis (MPA), to describe their
demographic characteristics, presenting clinical features, and initial treatments in …

Objective To investigate the characteristics and risk factors of a novel parenchymal lung
disease (LD), increasingly detected in systemic juvenile idiopathic arthritis (sJIA). Methods In a …

Objective There is no standardized approach to the initial treatment of polyarticular juvenile
idiopathic arthritis (JIA) among pediatric rheumatologists. Understanding the comparative …