Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate no mild cardiomegaly and interstitial edema . The azygos is markedly dilated and interlobular septal thickening is also appreciated . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Mild pulmonary edema . Given that this patient is post-partum , the heart size may not be abnormal , but the presentation of dyspnea with pulmonary edema raises concern for cardiomyopathy .