Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs : Unchanged left mid and lower zone opacity , a combination of moderate left pleural effusion and atelectasis / consolidation . Persistent reticulo nodular opacities in the left upper lobe also remain unchanged , corresponding to the diffuse interlobular septal thickening noted on the prior CT . Right lung is clear . Pleura : Moderate left pleural effusion , unchanged . No right pleural effusion or pneumothorax . Mediastinum : There is no cardiomegaly . Mediastinal silhoutte is within normal limits . Bony thorax : No change in bony thorax
    OUTPUT:
    
Unchanged left mid and lower zone opacity , a combination of moderate left pleural effusion and atelectasis / consolidation . Persistent reticulo nodular opacities in the left upper lobe also remain unchanged , corresponding to the diffuse interlobular septal thickening noted on the prior CT .