Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph was provided . The heart appears mildly enlarged . There is plate - like right basal atelectasis . There is no convincing sign of pneumonia or overt CHF . No large effusion or pneumothorax is seen . The mediastinal contour appears grossly unremarkable . Bony structures appear intact . Mild pulmonary hilar engorgement is likely present .
    OUTPUT:
    
Mild cardiomegaly with mild hilar engorgement . Mild right basal atelectasis .