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Characteristic clinical features of inclusion body myositis

Patterns of muscle weakness in inclusion body myositis. (A) Wasting of the forearm muscles (*) with difficulty making a grip. (B) Quadriceps atrophy (*). (C) “Locking up” of the knee to avoid falls and use of a cane. (D) Dysphagia in a patient who has to use a special cup to avoid tilting the head backwards when he tries to swallow. (Contributed by Dr. Marinos Dalakas.)

Related Media

Associated Disorders

  • Chronic denervation
  • Collagen vascular diseases
  • Dermatomyositis
  • Familial inclusion body myositis
  • Infections
  • Systemic immune-medicated disorders
  • Vacuolar distal myopathies