A notable reason for fever of unknown origin: Adult onset still disease

Fever of unknown origin is a symptom that is recognizedin all medical branches. Even though fever is a symptomof infectious diseases, not all fever cases are related withinfectious diseases. In the event of long term fever, besidethe infectious diseases, collagen tissue lesions andmalignancies must also be recognized.1 Here, we presenttwo adult-onset Still disease patients who were diagnosedwith fever of unknown origin. Our aim is to point outthe importance of remembering adult-onset Still diseasein patients who were diagnosed with fever of unknownorigin. J Clin Exp Invest 2013; 4 (1): 119-122Key words: Fever of unknown origin, adult onset still disease,collagen tissue