Study of 78 pt suspected of #GCA undergoing Temp. artery Bx and US. Nearly half (35) Dx w/ GCA. Both had similar sensitivities(69% and 63%, respectively), but specificity higher w/ biopsy (100% vs 79%). Compression sign had best diagnostic performance https://t.co/wzVqrHvfqM https://t.co/HRmfb6g7aF