The erythema nodosum is a dermo-panniculitis nodular. The elementary lesion is a nouure: that is to say a firm nodule embedded in the skin, round, sensitive to palpation, sometimes red, and warm. These skin lesions that evolve quickly, appearing in the shins in varying numbers.
Reached frequent in young women (25 to 40 years).
The clinical diagnosis is simply.
It can involve fever, asthenia, arthralgia.
It is characterized by the appearance of rounded nodules dermo-hypodermic (or nouures), bright red or purple, bilateral, symmetrical, localized to the extensor surface of the members, movable relative to the plane deep to the skin.
Changes in several attacks, disappearing in 10 to 15 days without sequelae.
The biopsied lesion showed an inflammatory infiltrate in the dermis, with accumulation of neutrophils, lymphocytes and macrophages.
* Sarcoidosis (Löfgren syndrome)
* Behcet Syndrome
* Inflammatory bowel disease (IBD): Crohn's disease, ulcerative colitis
* Primo-infection of TB
* Infection Digestive "Yersinia enterocolitica"
* Infection "Chlamydia"
* Infection "Salmonella (Salmonellosis)
* Scratch disease cat
* Hepatitis (virus A, B, C)
* Deep Mycoses
Sulfonamides, analgesics and NSAIDs, iodinated derivatives.
* Treatment of the cause
* Analgesics, anti-inflammatory drugs
* Potassium iodide
See also Erythema