Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Streaky linear opacification in the right base corresponds to some linear scarring or atelectasis as previously seen on the CT of the chest . There is a new hazy opacity at the left base . The upper lobes are clear . There is no pulmonary edema , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
1 . Hazy opacity at the left base which likely represent pneumonia . Recommend follow - up with a repeat radiograph in 4 weeks to ensure resolution after treatment . 2 . Linear opacity at the right base appears stable , and is likely scarring or atelectasis .