Erythema nodosum

Erythema nodosum is an inflammatory disorder. It involves tender, red bumps (nodules) under the skin.

Erythema nodosum associated with sarcoidosis

This picture shows reddish-purple, hard (indurated), painful nodules (Erythema nodosum) that occur most commonly on the shins. These lesions may be anywhere on the body and may be associated with tuberculosis (TB), sarcoidosis, coccidioidomycosis, systemic lupus erythematosis (SLE), fungal infections, or in response to medications.

Erythema nodosum on the foot

This person has erythema nodosum nodules on the feet. The feet are red and painful. This disorder is associated with drugs or infections.

Causes

Symptoms

Exams and Tests

Treatment

Outlook (Prognosis)

When to Contact a Medical Professional