AbstractTakayasu arteritis (TA) is a systemic vasculitis, most often affecting young, fertile women. In pre-pulseless phase with systemic inflammation, examination with ultrasound, MRA and 18FDG-PET can detect arteritis of the large arteries even before stenosis occurs. Among Caucasians the aorta arch and its branches are most often affected, whereas in Indian cohorts abdominal arteries are most often inflamed. The estimated incidence in Norway of 2.7/million inhabitants corresponds to that of North-Americans, but is based on very few cases. Outcome of pregnancy in TA depends on the distribution and amount of the vasculitis, secondary complications and access of medical follow-up. More focus on TA may result in earlier diagnosis and more multi-center studies should be initiated.
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