Clinical and laboratory findings characterizing the need for systemic corticosteroids and nonsteroidal systemic therapies, and the predicted outcomes in cutaneous polyarteritis nodosa: A single-centre retrospective analysis.

More than half of cPN can achieve remission without corticosteroids; an elevated WBC and the presence of skin ulcers predict the need for PSL; a high ESR before corticosteroid induction predicts treatment resistance, even with PSL.