This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Investigations

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The diagnosis of dermatomyositis is made on the basis of the clinical picture and raised circulating muscle enzymes; most usefully, serum creatinine kinase, and serum aldolase; less characteristic are the changes in serum SGOT or serum LDH.

Muscle biopsy may be performed, which shows muscle necrosis, phagocytosis of muscle fibres, and an inflammatory infiltrate. A suitable area should be identified by electromyography.

Autoantibodies such as ANF and RF are often positive.


Related pages

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page