Results: a 7 years old boy with 3 months of cough, intermittent fever and dyspnea; initially is hospitalized and treated 2 times with diagnosis of pneumonia. He reenters with hypoxemia, persistent respiratory symptoms and clinical deterioration. Because of risk of respiratory failure and radiological findings is transferred to out hospital. We found a patient with supplementary oxygen requirements, collateral circulation on the thorax and Cushing syndrome related with previous systemic corticoid use. The CT showed a tracheal mass with