Erythema Multiforme Flashcards
1
Q
what is erythema multiforme?
A
hypersensitivity reaction that is most commonly triggered by infections
2
Q
what are the features of erythema multiforme?
A
- target lesions
- back of the hands/feet –> spreading to torso
- upper limbs more common
- pruritus +/-
3
Q
what are some of the causes of erythema multiforme?
A
- viruses
- idiopathic
- bacteria
- drugs
- connective tissue disease (e.g. SLE)
- sarcoidosis
- malignancy
4
Q
what viruses can cause erythema multiforme?
A
- herpes simplex
- orf
5
Q
what is the most common cause of erythema multiforme?
A
herpes simplex virus
6
Q
what bacteria can cause erythema multiforme?
A
- mycoplasma
- streptococcus
7
Q
what drugs can cause erythema multiforme?
A
- penicllin
- sulphonamides
- carbamazepine
- allopurinol
- NSAIDs
- oral contraceptive pill
- nevirapine
