Background: COVID-19 runs a severe disease associated with acute respiratory distress syndrome in subset of patients, and hyperinflammatory response developing the second week contributes to worse outcome. Inflammatory features are mostly compatible macrophage activation (MAS) observed other viral infections despite resulting milder changes. Early detection treatment MAS may be better However, ...

Reactive hemophagocytic lymphohistiocytosis (HLH), or macrophage activation syndrome (MAS), is an unusual complication of systemic inflammatory diseases.1 Its association with juvenile idiopathic arthritis (JIA) is rare and treatment must be immediate. We report the case of a girl in whom we detected this association and treated it successfully with a drug that is not first-line therapy because...

Hemophagocytosis, a phenomenon of which activated macrophages phagocytosed hematopoietic elements was reportedly observed in severe dengue patients. In the present study, we investigated whether markers of macrophage activation syndrome (MAS) can be used as differential diagnostic markers of severe dengue. Two hundred and eight confirmed dengue patients were recruited for the study. Sandwich EL...

Results The primary diagnoses of the patients included in the study, respectively; systemic juvenil idiopathic arthritis (n=5), Systemic Lupus Erythematosus (n=2), juvenile dermatomyositis (n=2), a neonatale onset multisystem inflammatory disease (NOMID) and a microscopic polyartritis nodosa. The mean age of the patients was 9.9 years old (1-14), and male to female ratio was 3:8. The mean durat...

OBJECTIVE Juvenile rheumatoid arthritis (JRA), also known as juvenile idiopathic arthritis (JIA), is a rare autoimmune joint disorder of children. The concrete causes for the prevalence of the above pathological state are still unknown. In other words, it is an arthritis affecting mainly children and adolescents. Clinically, it has 3 different clinical subtypes. JRA patients are often noticed w...

Introduction The term of macrophage activation syndrome (MAS) refers to a condition caused by excessive activation and expansion of T lymphocytes and macrophagic histiocytes that exhibit hemophagocytic activity. The expansion of these cells also leads to a massive systemic inflammatory response associated with pan cytopenia, liver dysfunction, and coagulopathy consistent by disseminated intrava...