Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Cardiomegaly is mild , similar to the prior exam . There is calcification of the aortic knob . Prominence of vascular markings in the lung apices and around the hila are compatible with pulmonary vascular congestion . No pleural effusion or pneumothorax . No radiopaque foreign body . Osseous structures are unremarkable .
    OUTPUT:
    
Mild pulmonary vascular congestion without pleural effusion . Stable mild cardiomegaly .