Are bilateral temporal artery biopsies (TAB) required in the diagnosis of giant cell arteritis (GCA) (temporal arteritis)?

Updated: Sep 03, 2020
  • Author: Mythili Seetharaman, MD; Chief Editor: Herbert S Diamond, MD  more...
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Studies have found that bilateral biopsies do not increase the diagnostic yield in the vast majority of patients (99%). [124, 125, 126, 127] Nevertheless, most physicians with high clinical suspicion despite an initial negative biopsy would still recommend a second contralateral biopsy, given the consequences of a missed diagnosis of GCA. [128]

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