Small- to medium-sized arteritis diagnosed by F-18 FDG PET/CT: A case report.

F-18 FDG PET/CT identified arteritis in a 65-year-old male patient presenting with fever and muscle pain.

• The patient presented to the emergency department with persistent fever and generalized muscle pain lasting 3 weeks.
• F-18 FDG PET/CT revealed 'linear and branching tree-like patterns of hypermetabolism in the arteries of both arms and thighs.'
• The imaging findings led to a diagnosis of small- to medium-sized arteritis.
• This was a single case report (n=1).

Intravenous prednisolone therapy initiated following rheumatologist recommendation resulted in rapid resolution of symptoms.

• Treatment with intravenous prednisolone was initiated after rheumatologist consultation.
• Fever subsided and muscle pain resolved shortly after starting prednisolone therapy.
• No specific timeline or dosage for prednisolone was reported in the abstract.

F-18 FDG PET/CT served as a noninvasive alternative to invasive diagnostic procedures for arteritis diagnosis.

• Early diagnosis of arteritis is described as 'challenging due to nonspecific symptoms and often requires invasive procedures.'
• The use of FDG PET/CT avoided unnecessary interventions and inappropriate use of antibiotics.
• The modality also enabled 'objective monitoring of treatment response.'
• The imaging provided a noninvasive approach to diagnosing small- to medium-sized arteritis specifically.