Erythema Nodosum Flashcards
1
Q
What is erythema nodosum
A
Erythema nodosum is a form of panniculitis (inflammation of the fat under the skin) resulting in tender, raised, red nodules that usually affect the shin.
2
Q
What are the causes of Erythema NODOSUM
A
NO cause (idiopathic in 50%)
Drugs: sulfonamides, dapsone
OCP
Sarcoidosis
Ulcerative colitis/Crohn’s
Micro: Tuberculosis, Streptococcus, Toxoplasmosis
3
Q
What is inflamed in erythema nodosum
A
inflammation of subcutaneous fat
typically causes tender, erythematous, nodular lesions
4
Q
What is the management
A
usually resolves within 6 weeks
lesions heal without scarring
5
Q
What are the infective causes
A
streptococci
tuberculosis
brucellosis
6
Q
What systematic diseases can cause EN
A
sarcoidosis
inflammatory bowel disease
Behcet’s
