DD- DERM PBL Flashcards
a connective-tissue disease that is characterized by inflammation of the muscles and the skin.
Dermatomyositis (DM)
Dermatomyositis s/s
main symptoms include skin rash and symmetric proximal muscle weakness
______ findings occur in dermatomyositis but not PM and are generally present at diagnosis.
Skin
In DM, usually ____ presents first
skin symptoms (before muscle)
DM is a ______ disorder
autoimmune
______ (also in PM) refers to rough, cracked skin at the tips and lateral aspects of the fingers forming irregular dirty-appearing lines that resemble those seen in a laborer
Mechanic’s hands
a diffuse, flat, erythematous lesion over the back and shoulders or in a “V” over the posterior neck and back or neck and upper chest, which worsens with UV light
V sign or Shawl Sign, present in DM
Erythematousraised papules overlying the metacarpal and interphalangeal joints
Gottron’s papules
facial erythema with facial edema and scale represents a recent disease flare in an adult patient with dermatomyositis.
Malar and facial erythema
DM is likely triggered by
autoimmune
malignancy , infection, drug related
DM age?
Kids and adults
Systemic DM
myopathy
pulm disease
malignancy
calcinosis
High blood levels of _______ are often present in dermatomyositis or polymyositis
Creatine kinase (CPK)
Confluent macular erythema confined to the upper eyelid, with associated periorbital edema.
Heliotrope
present in DM
Lupus rash will spare the ______, DM will not
knuckles
DM is also itchy
