Unexplained long-lasting fever/inflammatory syndrome
ORPHA:251332· ICD-10 R50.8
Definition
A rare systemic disease characterized by febrile illness (body temperature >38.3°C on several occasions) or inflammation (elevated serum C-reactive protein and erythrocyte sedimentation rate) lasting at least three weeks and for which no specific diagnosis is achieved despite extended diagnostics.
- Age of onset
- All ages