Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient 's known dominant right upper lobe mass is difficult to completely ascertain ; however , there are clearly parenchymal abnormalities within the lungs in the right upper lobe , left upper lobe as well as probable right lower lobe , better appreciated on the chest CT . There is no evidence of pneumonia . There may be a small right pleural effusion . The cardiac size is normal . The aorta is tortuous . No pneumothorax .
    OUTPUT:
    
Known malignancy better appreciated on CT , but the parenchyma is clearly abnormal in multiple areas .