Eosinophilic myositis
Occurs in hypereosinophilic syndrome, parasitic infections, Churg Strauss syndrome,
Muscle biopsy:
- Inflammatory cells including eosinophils
Eosinophilic fasciitis a.k.a. Shulman syndrome:
Clinical features:
Subcutaneous induration sparing the face and fingers
Stiff joints
FBC: raised eosinophils
Biopsy:
Scleroinflammatory lesions in the fascia, may extend into the dermis or muscle.
Well circumscribed or absent eosinophilia
Perivascular lymphocytes and plasma cells