Introduction. Adult-onset Still’s disease is a rare systemic autoinflammatory disorder of unknown etiology, characterized by persistent fever, maculopapular skin rash, and arthritis or arthralgia. This triad of symptoms is usually accompanied by lymphadenopathy, hepatosplenomegaly, and various systemic manifestations. In the absence of adequate therapy, the disease course might become life-threatening, with complications such as macrophage activation syndrome, hemorrhagic alveolitis, disseminated intravascular coagulation syndrome. Case report. We present a case of adult-onset Still’s disease, misdiagnosed and treated initially as Hodgkin’s lymphoma. The further examination revealed a complex of lymphadenopathy, skin changes, articular syn...