Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is prominent , but stable since the prior examination . The pulmonary vasculature is similar to the most recent comparison examination as well . There is no pleural effusion or pneumothorax . A large mass in the left upper lobe is slightly increased in size since ___ , and remains concerning for primary malignancy . Other nodular opacity is see on prior CT are not well depicted , though there is suggestion of a nodular opacity in the right mid lung which had been present on prior CT as well . No definite focal consolidation is identified . Linear opacity in the right base is most consistent with atelectasis , and is largely similar to the most recent examination . Vertebral body height loss in the mid thoracic spine is similar to the prior examination . A sclerotic focus in the mid thoracic spine was also present on the prior examination and is compatible with overlying osteophyte formation . Cervical fixation hardware is unchanged .
    OUTPUT:
    
No definite evidence of pneumonia . Increase in size of left upper lobe mass since ___ .