Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AICD is unchanged in position , with leads extending to the region of the right atrium and right ventricle . Midline sternotomy wires and mediastinal clips are again seen . Lung volumes remain low , causing crowding of the bronchovascular markings . Blunting of the costophrenic angles could be secondary to a small amount of pleural effusion . There is mild pulmonary vascular congestion . The heart remains enlarged . No pneumothorax identified . No definite focal consolidation . Osseous structures are grossly intact .
    OUTPUT:
    
Mild cardiomegaly . Mild pulmonary vascular congestion . Probable small pleural effusions .