Difficulty in diagnosing Still's disease in adults (clinical observation)

Still’s disease in adults is a rare systemic inflammatory disease characterized by high fever, typical maculopapular rash, polyarthralgia, leukocytosis, and hyperferritinaemia. Clinical manifestations of the disease are diverse. Differential diagnosis involves a wide range of diseases including infections, autoimmune, and neoplastic diseases. The article presents a clinical case of Still’s disease in adults and provides analysis of typical clinical manifestations of the disease, diagnostic criteria, and treatment tactics.