Which dermatologic findings are characteristic of vasculitis?

Updated: Dec 10, 2018
  • Author: Nadia Jennifer Chiara Luca, MD; Chief Editor: Lawrence K Jung, MD  more...
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Answer

All patients with Henoch-Schönlein purpura have palpable purpuric rash, typically over buttocks and lower extremities.

Dermatologic manifestations of Kawasaki disease include polymorphous exanthem and red/swollen extremities.

Patients with polyarteritis nodosa have deep red tender subcutaneous nodules that can become ischemic and necrotic (see the images below).

Tender erythematous nodules in cutaneous polyarter Tender erythematous nodules in cutaneous polyarteritis nodosa (PAN).
Nodules on sole of foot in cutaneous polyarteritis Nodules on sole of foot in cutaneous polyarteritis nodosa (PAN).
Necrotic lesions of polyarteritis nodosa (PAN). Necrotic lesions of polyarteritis nodosa (PAN).

Livedo reticularis may also be seen in childhood polyarteritis nodosa.


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