Is it an allergy or an autoimmune vasculitis, or a little of both? Find out the story of urticarial vasculitis, how this disease was recognized and eventually sorted out from other types of urticaria.

· Intro 0:12

· In this episode 0:21

· Case study 1:22

· Chronic spontaneous urticaria, hives and nettles 7:57

· Dermatographism and witchcraft? 10:15

· Causes of urticaria 11:17

· Theory of inflammation and histamines 11:40

· Urticaria and treatments with histamines 12:09

· Types of urticaria 13:02

· Mayo Clinic study 13:39

· Chronic urticaria as a manifestation of necrotizing venulitis 16:10

· Connection between types of urticaria and leukocytoclastic vasculitis 20:02

· More case studies 20:38

· What do we know about treatments? 22:23

· In conclusion 24:15

· Coming up in part two 25:08

· Thanks for listening 25:47

Disclosures: Brown reports no relevant financial disclosures.

We’d love to hear from you! Send your comments/questions to Dr. Brown at rheuminationspodcast@healio.com. Follow us on Twitter @HRheuminations @AdamJBrownMD @HealioRheum.

References:

Czarnetzki BM. Int J Dermatol. 1989;doi:10.1111/j.1365-4362.1989.tb01314.x.

Kolkhir P, et al. J Allergy Clin Immunol. 2019;doi:10.1016/j.jaci.2018.09.007.

McDuffie FC, et al. Mayo Clin Proc. 1973;48(5):340-8.

Natbony SF, et al. J Allergy Clin Immunol. 1983;doi:10.1016/0091-6749(83)90096-9.

Soter NA. N Engl J Med. 1977;doi:10.1056/NEJM197706232962505.