Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . The lungs are well expanded . There is an airspace opacity in the anterior right upper lobe with air bronchograms . Medial depression of the adjacent minor fissure suggests the possibility of a central mass . There is no effusion or pneumothorax . Cardiac and mediastinal contours are normal .
    OUTPUT:
    
Right upper lobe pneumonia . Followup imaging after treatment in ___ weeks is essential to confirm resolution and exclude a central obstructing mass .