Asymmetrical muscular disorder with normal creatine kinase (CK) and electromyography (EMG): the challenging diagnosis of muscular polyarteritis nodosa (MPAN), case report and literature review.
We report a case of muscular polyarteritis nodosa in a 23-year-old man with no past medical history presenting with diffuse myalgias, weight loss, fatigue, hypertension, and elevated C-reactive protein. Normal creatine kinase and electromyography contributed to a delayed diagnosis. MRI-guided muscular biopsy confirmed necrotizing vasculitis. Corticosteroid therapy led to rapid improvement.
Authors
Dib Dib, Lequain Lequain, Fenouil Fenouil, Pegat Pegat, Petiot Petiot, Barta Barta, Mayard Mayard, Balletti Balletti, Virot Virot, Pascu Pascu, Hot Hot, Gallay Gallay
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