title: Chronic Inflammatory Demyelinating Polyneuropathy Manifesting as Neuropathy With Liability to Pressure Palsies: A Case Report.
abstract: BACKGROUND
  Chronic inflammatory demyelinating polyneuropathy (CIDP) is a progressive demyelinating neuropathy, which typically presents with proximal and distal neuropathic symptoms and is typically responsive to immunomodulatory therapies. Many variants have been subsequently described in the literature and have similarly shown to be responsive to immunotherapy.
  
  
  METHODS
  We present a case of a 43-year-old Middle Eastern/Arabic man presenting with symptoms of mixed sensorimotor neuropathy most evident at entrapment sites mimicking hereditary neuropathy with liability to pressure palsies. His electrodiagnostic study revealed features of acquired demyelinating neuropathy and a negative genetic workup. Alternative diagnosis of CIDP was considered in the context of symptomatic disease progression, negative genetic workup, and electrodiagnosis leading to initiation of immunotherapy with intravenous immunoglobulins. His neuropathy responded confirming our diagnosis of an inflammatory demyelinating polyneuropathy.
  
  
  CONCLUSIONS
  We describe a previously unknown variant of CIDP with phenotypic characteristics of hereditary neuropathy with liability to pressure palsies and its potential for successful treatment with intravenous immunoglobulins. This case illustrates an unusual presentation of CIDP mimicking hereditary neuropathy with liability to pressure palsies.
authors.affiliation: *Neuromuscular Division, Department of Neurology, Keck Medical Center of USC, University of Southern California, Los Angeles, CA; and †Neurology Consultants Medical Group, Keck School of Medicine, University of Southern California, Los Angeles County Medical Center, Medical Director PIH Health Stroke Program, Whittier, CA.
authors.forename: Akshay
authors.initials: A
authors.lastname: Shah
authors.forename: Richard A
authors.initials: RA
authors.lastname: Rison
authors.forename: Said R
authors.initials: SR
authors.lastname: Beydoun
mesh_terms: D000328:Adult; D004568:Electrodiagnosis; D006801:Humans; D016756:Immunoglobulins, Intravenous / Q000627:therapeutic use; D008279:Magnetic Resonance Imaging; D008297:Male; D009431:Neural Conduction / Q000187:drug effects; D010243:Paralysis / Q000503:physiopathology*; D020277:Polyradiculoneuropathy, Chronic Inflammatory Demyelinating / Q000175:diagnosis / Q000188:drug therapy / Q000503:physiopathology*; D011312:Pressure / Q000009:adverse effects*
chemical_list: D016756:Immunoglobulins, Intravenous