The Age ■ Children→ infection is the most frequent 口EB∨,CMV.. others ■Elde!y→ Neoplasm&CT- Disorders 口 Giant cell arteritis }>50yr(30%) a Polymyalgia Rheumatica yThe Age  Children → infection is the most frequent. EBV, CMV… others  Elderly → Neoplasm & CT-Disorders Giant cell arteritis } > 50 yr (30%) Polymyalgia Rheumatica }