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Giant Cell Arteritis (Temporal Arteritis)Definition: Vasculitis affecting large and medium-sized arteries, commonly temporal arteriesClinicalfeatures:New-onset headacheScalp tendernessJaw claudicationVisual disturbancesConstitutional symptomsInvestigations: Elevated ESR (best initial test)Temporal artery biopsy (gold standard)Treatment: High-dose corticosteroids (urgent treatment to prevent vision loss)Low-dose aspirin
