Cutaneous polyarteritis nodosa and concurrent pseudoxanthoma elasticum–like phenotype: A case report

Autor: Roxana Mititelu, Larry W Cheung, Denis Sasseville
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: SAGE Open Medical Case Reports, Vol 8 (2020)
Druh dokumentu: article
ISSN: 2050-313X
2050313X
DOI: 10.1177/2050313X20953110
Popis: We report a unique case of a patient presenting with histologically confirmed pseudoxanthoma elasticum–like phenotype and cutaneous polyarteritis nodosa. Cardiac, gastroenterological, and ophthalmologic evaluations were within normal limits. Genetic evaluation was pertinent for absent ABCC6, ENPP1, and GGCX mutations and a normal array comparative genomic hybridization. Extensive workup revealed skin-limited cutaneous polyarteritis nodosa, and further genetic testing for ADA2 deficiency was negative. The cutaneous polyarteritis nodosa lesions had an excellent response to hydroxychloroquine and methotrexate. Pseudoxanthoma elasticum and polyarteritis nodosa are relatively uncommon, and our patient is among the first reported cases presenting with both pseudoxanthoma elasticum–like and polyarteritis nodosa. Furthermore, this case emphasizes the importance of a thorough cutaneous exam, as the patient had the lesions consistent with pseudoxanthoma elasticum–like since childhood and had previously gone undiagnosed.
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