Intriguing Findings of the Muscle on Magnetic Resonance Imaging in Polyarteritis Nodosa

Polyarteritis nodosa (PAN) confined to the muscle is rare and hard to diagnose. Recently, the utility of magnetic resonance imaging (MRI) for detecting muscle involvement of PAN has been introduced. We herein report the case of biopsy-proven, refractory PAN confined to the lower limb muscles with en...

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Detalles Bibliográficos
Autores principales: Takei, Hiroshi, Hanaoka, Hironari, Kaneko, Yuko, Yamaoka, Kunihiro, Sasaki, Aya, Takeuchi, Tsutomu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society of Internal Medicine 2016
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5140874/
https://www.ncbi.nlm.nih.gov/pubmed/27803419
Descripción
Sumario:Polyarteritis nodosa (PAN) confined to the muscle is rare and hard to diagnose. Recently, the utility of magnetic resonance imaging (MRI) for detecting muscle involvement of PAN has been introduced. We herein report the case of biopsy-proven, refractory PAN confined to the lower limb muscles with enhanced MRI demonstrating discretely granular hyperintensities, which was contrary to previous reports. Our results, with those of previous reports, suggest that the MRI findings of muscles in PAN reflect the vessel size involved and disease severity.

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