Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube is approximately 2 .6 cm above the carina . Lung volumes are low . The heart is moderately enlarged . Mediastinal silhouette is unchanged compared to multiple priors . There is no focal consolidation , pulmonary edema , pneumothorax , or pleural effusion .
    OUTPUT:
    
Moderate cardiomegaly without pulmonary edema or consolidation .