title: Case Report: Elevated CPK, an indicator of idiopathic inflammatory myopathy?
abstract: Polymyositis is a rare disease with incidence rates at about 1 per 100,000 people annually. In this case report we will review a case of proximal muscle weakness with an elevated creatine phosphokinase that was initially misdiagnosed twice as rhabdomyolysis. Therefore, emphasizing that idiopathic inflammatory myopathy is a potential cause of myasthenia that must be considered in the differential. The case will also describe the current treatment and treatment response in polymyositis.
authors.affiliation: Internal Medicine, Montefiore Medical Center of the Albert Einstein College of Medicine, Bronx, USA.
authors.forename: Hina N
authors.initials: HN
authors.lastname: Khan
authors.affiliation: New York Institute of Technology College of Osteopathic Medicine, Long Island, USA.
authors.forename: Usman
authors.initials: U
authors.lastname: Jilani
authors.affiliation: Internal Medicine, Montefiore Medical Center of the Albert Einstein College of Medicine, Bronx, USA.
authors.forename: Shitij
authors.initials: S
authors.lastname: Arora
keywords: Idiopathic inflammatory myopathy; Myasthenia; Polymyositis