Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is not engorged . Left upper lobe opacity corresponds the known mass seen on previous chest CT . Minimal streaky opacification and reticulation is seen within the lower lobes , corresponding to areas of minimal fibrosis seen on the recent CT , without new focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormality is demonstrated .
    OUTPUT:
    
No radiographic evidence for pneumonia . Left upper lobe opacity corresponds to known mass as seen on recent CT . Reticulation and streaky opacification in the lower lobes bilaterally corresponding to minimal fibrosis seen on the previous examination .