A patient with systemic symptoms but no visual loss was investigated for suspe cted giant cell arteritis. Initial temporal artery biopsy was reported as negati ve; however, she returned with visual loss 2 months later, and the diagnosis of giant cell arteritis was confirmed with a subsequent biopsy. In hindsight, signs suggestive of the disease were present in the original biopsy, although the usu al diagnostic features were absent.
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