Which physical findings are characteristic of antithrombin III (ATIII) deficiency?

Updated: Mar 04, 2020
  • Author: James L Harper, MD; Chief Editor: Hassan M Yaish, MD  more...
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  • No physical stigmata are associated with congenital antithrombin III deficiency.

  • Homozygote-deficient newborns may have purpura fulminans-type presentation with embolic lesions in the skin. Heterozygote newborns are typically normal in appearance and do not commonly develop purpura fulminans unless coexisting risk factors are present.

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