Erythema nodosum (EN)?,”EN is a condition of painful, subcutaneous, pretibial nodules. It can be a symptom of more serious disease processes including sarcoidosis, TB, histoplasmosis, recent Strep infection, and inflammatory bowel disease. The association of EN with sarcoidosis is particularly strong in young, African-American women. Cough, arthritis, uveitis
hilar adenopathy on chest x-ray are also associated with sarcoidosis.”