Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are several focal pulmonary abnormalities which are difficult to characterize . For example , there is bronchial wall thickening in the right mid lung zone and a linear opacity in the left lower lung zone . There is no pulmonary edema , consolidation , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
1 . Multiple focal pulmonary abnormalities which are difficult to characterize . Recommend further evaluation with conventional PA and lateral radiographs . 2 . No evidence of pulmonary edema or lobar collapse .