Erythema Nodosum (3)

Question 1

What is it?

What are its causes?

How is it managed?

Answer 1

➊ Tender, non-ulcerated, erythematous nodules located most commonly on the anterior shins

N.B. EN is a type of panniculitis.

➋ * NO cause found in 60% of cases
* Drugs e.g. abx,
* Oral contraceptives
* Sarcoidosis or Lofgren’s syndrome
* Ulcerative colitis, Chron’s disease, or Bechet’s disease
* Micro - TB, HSV etc.

➌ * Bed rest and leg elevation
* NSAIDs
* Treatment of underlying cause