Skip to main content

Login to North West London Pathology – consumables service

If you need a new account or you have a query about your order, please telephone the pathology call centre on 0203 313 5353.

If you have forgotten your password you can reset this yourself. Please click here if you have forgotten your password.

Results Line and Enquiries

0203 313 5353

Myositis antibodies

Category Immunology
Test background

Myositis-specific antibodies are tested by immunoblot. This includes EJ, OJ, SRP and Ro-52 antibodies in addition to Ku, Mi-2, Jo-1, PM-Scl, PL-7, PL-12 which are already mentioned. Myositis is an inflammatory disease of the skeletal muscles. Myositis may be hereditary or caused by infections, malfunctions of the immune system or by toxins. Polymyositis in an inflammatory disease of the skeletal muscles with perivascular lymphocytic infiltration. Its aetiology is unknown. In case of skin involvement the disease is known as dermatomyositis.

Clinical Indications

Suspected myositis.

Reference range


Sample & container required RST (rust top)
Sample volume 5-10 mL (1 mL serum)
Turnaround time 28 days

The laboratory is not accredited for anti EJ antibodies