Focal myositis (FM): clinical features

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Focal myositis (FM): clinical features. This is an inflammatory pseudotumour of skeletal muscles. Fully referenced neurology checklist.

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

Locked: subscribe to see this section.

Clinical features

Locked: subscribe to see this section.

Classification

Locked: subscribe to see this section.

Associated disorders

Locked: subscribe to see this section.

Outcome

Locked: subscribe to see this section.

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.
  6. And 10 more. Subscribe to see the full list

Related checklists

Loading...