Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior exam , the mild pulmonary edema has resolved . Linear opacities at the bilateral bases most likely represent atelectasis . There is no evidence of a focal consolidation to suggest pneumonia . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . A coarse calcification overlying the right apex is unchanged , and possibly a calcified thyroid nodule . A right diaphragmatic eventration is unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .