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Granulocyte-dependent Autoantibody-induced Skin Blistering

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Cutaneous polyarteritis nodosa: a comprehensive review.

Aaron Joseph Morgan¹, Robert A Schwartz

¹Dermatology and Pathology, New Jersey Medical School, Newark, NJ, USA.

International Journal of Dermatology

|July 13, 2010

Summary

Cutaneous polyarteritis nodosa is a rare vasculitis affecting small-to-medium arteries, presenting with skin lesions and systemic symptoms. Diagnosis requires excluding systemic forms, with treatment ranging from NSAIDs to corticosteroids and adjunctive therapies.

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Area of Science:

Dermatology
Rheumatology
Pathology

Background:

Cutaneous polyarteritis nodosa (CPN) is a rare vasculitis affecting small-to-medium-sized arteries.
Its exact etiology remains unknown, presenting diagnostic challenges.

Purpose of the Study:

To describe the clinical manifestations, diagnosis, and management of cutaneous polyarteritis nodosa.
To differentiate CPN from systemic polyarteritis nodosa.

Main Methods:

Review of clinical presentations including subcutaneous nodules, livedo reticularis, ulcers, and necrosis.
Diagnostic criteria emphasizing exclusion of systemic polyarteritis nodosa.
Evaluation of treatment outcomes with nonsteroidal anti-inflammatory drugs, corticosteroids, and adjunctive therapies.

Main Results:

CPN presents with characteristic skin lesions and may involve extra-cutaneous symptoms like fever, myalgias, and arthralgias.
Exclusion of systemic involvement is critical for diagnosis.
A chronic course with remissions and relapses is typical, generally with a favorable prognosis.

Conclusions:

Cutaneous polyarteritis nodosa is a distinct vasculitic entity with a manageable clinical course.
Treatment strategies are tailored to disease severity, aiming for symptom control and minimizing steroid dependence.