Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is stably enlarged . Lung volumes are low with associated crowding of bronchovascular structures at the lung bases . There is stable mild , unchanged indistinctness of the pulmonary vasculature . Trace bilateral pleural effusions are noted as demonstrated on recent abdominal CT from the same date .
    OUTPUT:
    
No lung findings to suggest acute aspiration .