Erythema Nodosum Flashcards
1
Q
what is erythema nodosum?
A
cutaneous hypersensitivity reaction charactersied by inflammation of subcutaneous tissue
2
Q
what is the typical features of erythema nodosum?
A
- rapid onset
- tender, red nodules on the shins, thighs, calves, buttocks or face
3
Q
how long does it take for erythema nodosum to resolve?
A
resolves within 6 weeks
4
Q
what are the causes of erythema nodosum?
A
- infection
- systemic disease
- malignancy/lymphoma
- drugs
- pregnancy
5
Q
what systemic conditions can cause erythema nodosum?
A
- sarcoidosis
- inflammatory bowel disease
- behcets
6
Q
what infections can cause erythema nodosum?
A
- streptococci
- tuberculosis
- brucellosis
7
Q
what drugs cause erythema nodosum?
A
- penicillins
- sulphonamides - e.g. sulfasalazine
- combined oral contraceptive pill
