Diffuse Alveolar Hemorrhage Revealing Systemic Lupus Erythematosus

Alveolar hemorrhage is an uncommon complication of systemic lupus erythematosus, rarely being the initial symptom. This condition is a medical emergency, as it can quickly progress to life-threatening respiratory failure. The characteristic symptoms include coughing up blood, anemia, and lung inflammation on imaging. Early treatment with corticosteroids and immunosuppressants can significantly improve outcomes. We present a case of a young woman with alveolar hemorrhage that led to the diagnosis of severe systemic lupus erythematosus. She responded favorably to immediate treatment.