Figure 1: Chest radiograph and computed tomography scan before and after treatment: (a) posteroanterior image of the chest with a protruding lesion over the right upper mediastinum (arrows); (b and c) axial and coronal images of computed tomography scan of chest with a 3.5 cm mass in the right lower paratracheal space of mediastinum with central necrosis and focal invasion into lung parenchyma (arrows); (d-f) complete remission of right mediastinal lesion after antibiotic therapy