Erythema Nodosum Flashcards
1
Q
What is it an inflammation of?
A
Subcutaneous fat
2
Q
Where does it usually occur?
A
Over shins
Also occur elsewhere - forearms, thighs
3
Q
Describe the lesions
A
Erythematous nodular lesions
Ill defined
Tender
4
Q
When does it usually resolve?
A
Within 6 weeks
5
Q
Does it heal with or without scarring?
A
Without
6
Q
What can cause it?
A
IBD
Sarcoidosis
Behcet’s
TB
Streptococci
Malignancy /lymphoma
Pregnancy
7
Q
What drugs can cause erythema nodosum?
A
Penicillins
Sulphonamides
COCP
8
Q
What mnemonic can be used to explain the cause?
A
NO - idiopathic Drugs Oral contraceptives/pregnancy Sarcoidosis/TB UC/ Crohn’s/ Behcet’s Microbiology - streptococcus, EBV
9
Q
Is it more common in men or women ?
A
Women
10
Q
What is the duration of lesion eruption?
A
Erupt over 1 to several weeks
11
Q
What are the lesions often accompanied by?
A
Fever
Joint pain
12
Q
Is there ulceration?
A
No
