Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post extubation . Right subclavian central line is unchanged in position . The left hemidiaphragm appears less distinct , possibly related to increased pleural effusion , however this may be due to differences in technique / position . The right pleural effusion appears slightly decreased . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Equivocal pleural effusion changes , possibly due to positional differences .