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Table 1 Distribution of IgG4-related periaortitis/periarteritis

From: Clinical features of IgG4-related periaortitis/periarteritis based on the analysis of 179 patients with IgG4-related disease: a case–control study

Type Distribution Frequency
1 Localization at the infra-renal portion of the abdominal aorta 16 (24.6%)
2 As Type 1, with continuation to medium-sized arteries (mainly the common iliac arteries) 29 (44.6%)
3 As Type 2, with separate manifestation in the ascending aorta 8 (12.3%)
4 Localization in medium-sized arteries only 6 (9.2%)
5 Other localization pattern 6 (9.2%)
Total   65 (100%)
  1. Periaortitis/periarteritis could be broadly classified into five types, and the most prevalent location was Type 2. Moreover, the infra-renal artery portion of the abdominal aorta was most frequently involved as seen in Types 1, 2, and 3, (> 80%), while the supra-renal artery portion of the abdominal aorta was largely spared
  2. IgG4 immunoglobulin G4