Presents with weakness in the large muscles that spares the small muscles. About a third of patients have a rash (dermatomyositis) – the one I always remember is the blue-purple discolouration on the eyelids, but it can also prseent as a flat red rash on the face & upper trunk or as raised purple-red scaly patches on the knuckles.

Check muscle enzymes – CK, LDH, transaminases, aldolase (whatever that is). Muscle biopsy confirms the diagnosis. Diagnose early, as delay in starting treatment leads to further muscle deterioration and reduced chance recovery.


About Dr Sarah

I'm a GP with a husband and two young children.
This entry was posted in Credits 2012, Rheumatology. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s