Flashcards in Erythema Multiforme Deck (17)
Reaction of blood vessels in dermis
What type of lesions are in EM?
target, macule papule, vesicles and bullae in center of lesions
How does EM develop?
How does EM present?
pruritic and painful, bilteral and symmetrical, +/- constitutional symptoms
What are the causes of EM?
Herpes simplex, Mycoplasma
Sulfonamides, phenytoin, barbiturates, phenylbutazone, PCN, allopurinol
What sites are affected in EM?
dorsum of hands
PALMS AND SOLES OF FEET
What mucous membranes of affected?
What is EM minor?
Limited mucous membrane involvement
Classic target lesions
No systemic symptoms
Confined to the extremities and face
What is EM major?
Mucous membrane involvement
Confluent, bullous, erythematous lesions
Who gets EM most often?
Who is at high risk of EM?
Bone marrow transplant
Graft vs host disease
What is the work up for EM?
Generally not needed
Blood, sputum, and mucosal cultures
What are the supportive tx for EM?
Local skin care
Avoid the offending agent
What is EM tx for severe cases?
fluid resuscitation, hospititalization
What is EM tx for recurrent cases?
refer to dermatologoy, may need immunosuppressive therapy
What is the prognosis with minor?
good, resolves around 1-3 wks