The<unk>  typically presents with joint pain, high fevers, a salmon-pink macular or maculopapular rash, enlargement of the liver and spleen, swollen lymph nodes, and a neutrophil-predominant increased white blood cell count in the blood. Tests for rheumatoid factor and anti-nuclear antibodies are usually negative and serum ferritin is markedly elevated. Patients experiencing a flare-up from<unk>  usually report extreme fatigue, swelling of the lymph nodes and, less commonly, fluid accumulation in the lungs and heart. In rare cases,<unk>  can cause life-threatening complications, including hemophagocytic lymphohistiocytosis, IVDC, fulminant hepatitis, or disabling conditions such as aseptic meningitis and sensorineural hearing loss.
Adult-onset Still's disease
Boutonneuse fever
Far East scarlet-like fever
Barcoo fever
Tomato fever
Haverhill fever
Murine typhus
Quartan fever