Inner Peace: Cutaneous Polyarteritis Nodosa

Highly suspected valsartan-induced chronic erythema nodosum migrans in a patient with hypertension: a case report

Erythema nodosum migrans (ENM) is usually considered as a rare clinical variant of erythema nodosum and is characterized by unilateral, migratory, relatively painless, nodular lesions. ENM cases are rarely reported and most cases are idiopathic. Therefore, the appropriate treatment modality of ENM is unknown. We report a 72-year-old woman with highly suspected valsartan-induced ENM. She experienced painful, infiltrated, centrifugally spreading, slightly morpheaform, erythematous plaques on the flexor side of her left leg. Her symptoms were relieved after discontinuation of valsartan and temporary administration of oral prednisone once daily (20 mg for the first 7 days and 10 mg for the next 7 days).

Therapeutic options for cutaneous polyarteritis nodosa: a systematic review

OBJECTIVE

Cutaneous polyarteritis nodosa (CPAN) is a necrotizing vasculitis of the middle-size vessels, confined to the skin. We conducted a systematic review in order to identify studies evaluating the different treatment modalities used in CPAN.

METHODS

This systematic review was conducted according to PRISMA guidelines, registered in PROSPERO: CRD42020222195. PubMed/Medline databases were searched from inception to December of 2020 using the terms: (Polyarteritis nodosa[Title/Abstract]) AND ((therapy[Title/Abstract]) OR (management[Title/Abstract]) OR (treatment[Title/Abstract]))' and 'Cutaneous arteritis [Title/Abstract]'. Articles evaluating pertaining to the management of CPAN in adults were eligible for inclusion.

RESULTS

A total of seven eligible case series with 325 unique patients were included. No study included a control population. In general, systemic corticosteroids were widely used as induction treatment. Immunosuppressive agents combined with corticosteroids were AZA, hydroxychloroquine, sulfasalazine, sulphapyridine, CYC, MTX, mycophenolate, tacrolimus, rituxima and thalidomide. Other agents utilized in the studies were dapsone, colchicine, non-steroid anti-inflammatory drugs, salicylates, warfarin and clopidogrel. In some studies, the presence of ulcerations was associated with an increased risk of relapse.

CONCLUSION

The evidence available regarding the management of patients with CPAN is limited at best. Further studies are needed in order to evaluate the effect of treatment on disease remission, relapses and mortality.

Human oncoviruses: Mucocutaneous manifestations, pathogenesis, therapeutics, and prevention: Hepatitis viruses, human T-cell leukemia viruses, herpesviruses, and Epstein-Barr virus

In 1964, the first human oncovirus, Epstein-Barr virus, was identified in Burkitt lymphoma cells. Since then, 6 other human oncoviruses have been identified: human papillomavirus, Merkel cell polyomavirus, hepatitis B and C viruses, human T-cell lymphotropic virus-1, and human herpesvirus-8. These viruses are causally linked to 12% of all cancers, many of which have mucocutaneous manifestations. In addition, oncoviruses are associated with multiple benign mucocutaneous diseases. Research regarding the pathogenic mechanisms of oncoviruses and virus-specific treatment and prevention is rapidly evolving. Preventative vaccines for human papillomavirus and hepatitis B virus are already available. This review discusses the mucocutaneous manifestations, pathogenesis, diagnosis, treatment, and prevention of oncovirus-related diseases. The first article in this continuing medical education series focuses on diseases associated with human papillomavirus and Merkel cell polyomavirus, while the second article in the series focuses on diseases associated with hepatitis B and C viruses, human T-cell lymphotropic virus-1, human herpesvirus-8, and Epstein-Barr virus.