Polymyositis

Aka: Polymyositis

advertisement

II. Types

  1. Type 1: Primary Idiopathic Polymyositis (33%)
  2. Type 2: Primary Idiopathic Dermatomyositis (25%)
  3. Type 3: Neoplasia related
  4. Type 4: Childhood disease with Vasculitis
  5. Type 5: Collagen Vascular disease related
  6. Type 6: Miscellaneous (Inclusion body, Eosinophilic)

III. Diagnostic Criteria

  1. Dermatomyositis Diagnosis
    1. Four or more findings seen in Polymyositis (below)
    2. Cutaneous findings suggestive of Dermatomyositis
  2. Polymyositis Diagnosis (4 or more criteria below)
    1. Proximal Muscle Weakness (trunk, thighs, Shoulders)
    2. Increased serum Creatine Phosphokinase or Aldolase
    3. Muscle pain on grasping or spontaneously
    4. EMG myogenic changes (see Polymyositis Evaluation)
    5. Positive anti-Jo1 Antibody
    6. Nondestructive Arthritis or Arthralgia
    7. Pathologic inflammatory signs
    8. Systemic inflammation signs
      1. Temperature over 37 C at axilla
      2. C-Reactive Protein increased
      3. Erythrocyte Sedimentation Rate >20 mm/hour

IV. Differential Diagnosis

  1. See Polymyositis Differential Diagnosis

V. Evaluation

  1. See Polymyositis Evaluation

VI. Management

  1. See Polymyositis Management

VII. References

  1. Koler (2001) Am Fam Physician 64(9):1565-72 [PubMed]
  2. Pachman (1995) Pediatr Clin North Am 42:1071-98 [PubMed]
  3. Tanimoto (1995) J Rheumatol 22:4 [PubMed]

Images: Related links to external sites (from Bing)

These images are a random sampling from a Bing search on the term "Polymyositis." Click on the image (or right click) to open the source website in a new browser window. Search Bing for all related images

Related Studies

Related Topics in Connective Tissue Disorders

advertisement