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We thank Graver et al 1 for their interest in our recently published article on artery tertiary lymphoid organs (ATLOs) in giant cell arteritis (GCA).2
The authors stained temporal artery biopsies of 21 biopsy-proven GCA patients (71% female, mean duration of disease of 2.3±0.9 months) that fulfilled the 1990 American College of Rheumatology classification criteria with anti-CD20 and anti-CD3 antibodies. On the basis of this experimental approach, they confirmed the presence of ATLOs only in the adventitia of inflamed arteries of GCA patients and not in the media as demonstrated in our study. This statement, however, is not supported in our opinion by the experimental approach …
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Competing interests None declared.
Provenance and peer review Commissioned; internally peer reviewed.