Dermatomyositis Flashcards
1
Q
What?
A
Polymyositis with additional typical cutaneous features
2
Q
Typical features?
A
Gottron’s sign
Hellotrope rash
Shawl sign
3
Q
Gottron’s sign?
A
Reddish/ purplish discolouration of PIP and DIP joints
4
Q
Hellotrope rash?
A
Similar to Gottrons but around the eyes
Eye swelling
5
Q
Shawl sign?
A
Reddish/ purplish rash on back of shoulder & front of chest
6
Q
Examination?
A
Look at muscles -> wasting?
Skin involvement> - for dermatomyositis
Test muscle power – confrontational testing, isotonic testing
7
Q
Investigations?
A
Raised inflammatory markers Raised serum CK levels Autoantibodies MRI EMG Muscle biopsy
8
Q
Autoantibodies?
A
ANA, anti- Jo- 1, anti- SRP
9
Q
Definitive investigation?
A
Muscle biopsy
10
Q
Management?
A
Prednisolone (40mg) with immunosuppressive drug (methotrexate or azathioprine)
11
Q
What is this associated with?
A
Malignant (must be screened for once diagnosed)
