Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The previously seen bibasal pleural effusions are no longer apparent . Prominence of the pulmonary hila and haziness of pulmonary vascular is consistent with pulmonary vascular congestion . An intra-aortic balloon pump is in - situ . The balloon is distended on the current image . Bibasal atelectasis is likely related to the prior effusions . The 2 right lower lobe pulmonary nodules seen on the prior CT are not clearly seen on the current study .
    OUTPUT:
    
Pulmonary vascular congestion . Improvement in the bibasal pleural effusions . IABP in - situ .