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Idiopathic, Syndromes, Symptoms


Erythema Nodosum


  1. lab evaluation: CBC with diff, ESR, chem 21, TSH, ANA + RF (if arthritis/myalgia), U/A
  2. therapy

Heat-Related Illness


Serotonin Syndrome


See also: An Approach to Diagnosis and Initial Management of Systemic Vasculitis - AFP Oct 1999. As of 2001 it's not clear what the relationship (if any) is between the vasculitides and the clinically somewhat similar thrombotic microangiopathies (TMA) such as Hemolytic-Uremic Syndrome (HUS).

Small vessel

ANCA associated

Immune complex

Other: Paraneoplastic, Inflammatory Bowel disease

Medium vessel

Large Vessel

Author: John G. Faughnan.  The views and opinions expressed in this page are strictly those of the page author. Pages are updated on an irregular schedule; suggestions/fixes are welcome but they may take weeks to years to be incorporated. Anyone may freely link to anything on this site and print any page; no permission is needed for citing, linking,  printing, or distributing printed copies.