Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear right midlung opacity is likely due to atelectasis . Increased opacity in the right paramediastinal region is likely due to consolidation within the azygos lobe . Increased pleural based opacity in the right upper lung laterally is compatible with pleural - based based metastases seen on prior PET - CT . New blunting of the right lateral costophrenic angle on the frontal view may also be due to pleural based disease . Irregular interstitial markings of the periphery of the left lung are better seen on prior CT . Left chest wall Port - A - Cath seen with tip in the region of the low SVC . Cardiac silhouette is stable . Enlarged right hilum is compatible with known malignant adenopathy . No visualized acute osseous abnormality . Destruction of the anterior right upper ribs was better seen on prior CT .
    OUTPUT:
    
Evidence of disease in the chest on the right including pleural - based mass as seen on prior PET - CT . Apparent increased pleural based involvement at the right lung base laterally . Right hilar adenopathy better seen on prior PET . Consolidation within the azygos lobe has progressed since prior PET - CT , potentially atelectasis or due to adjacent pleural based disease .