Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were provided . There is a large central mass in the right upper and mid lung zones , likely involving the mediastinum consistent with patient 's known history of lung cancer . There is associated collapse of the right upper lobe . A small cavity in the left mid lung zone , as seen on MRI , is likely a metastasis . There is prominence of the interstitial markings . Elevation of the right hemidiaphragm suggests phrenic nerve involvement from the large lung mass . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Large right upper lung mass involving the mediastinum , specifically the phrenic nerve , also responsible for right upper lobe collapse . Likely left lung metastasis .