Focal myositis (FM): clinical features

Evidence-based neurology checklist on focal myositis (fm): clinical features: Pathology and genetics This is an inflammatory pseudotumour of skeletal muscles It is possibly associated with HLA A2, B62, Cw3, and DQ3 It may arise from chronic neurogenic compression and irritation There is preceding…

Pathology and genetics

  • This is an inflammatory pseudotumour of skeletal muscles
  • It is possibly associated with HLA A2, B62, Cw3, and DQ3
  • It may arise from chronic neurogenic compression and irritation
  • There is preceding trauma in about 20% of cases

Demographic features

Clinical features

Classification

Associated disorders

Outcome

References

  1. Gallay L, Hot A, Petiot P, Thivolet-Bejui F, Maucort-Boulch D, Streichenberger N. Focal myositis: new insights on diagnosis and pathology. Neurology 2018; 90:e1013-e1020.
  2. Auerbach A, Fanburg-Smith JC, Wang G, Rushing EJ. Focal myositis: a clinicopathologic study of 115 cases of an intramuscular mass-like reactive process. Am J Surg Pathol 2009; 33:1016-1024. 
  3. Sekiguchi K, Kanda F, Oishi K, et al. HLA typing in focal myositis. J Neurol Sci 2004; 227:21-25.
  4. Lunde HM, Skeie GO, Bertelsen AK, et al. Focal myositis-neurogenic phenomenon? Neuromuscul Disord 2012; 22:350-354.
  5. Gigante C, Corradin M, Alaggio R. Focal myositis in paediatric age. Muscles Ligaments Tendons J 2015; 5:45-50.
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