Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP portable radiograph of the chest was obtained . There is opacity at the left lung base obscuring the left heart ___ , ___ represent pneumonia or aspiration . Thre are also scattered rounded opacities , most apparent in the right lung base measuring 2 cm . Additional smaller nodular opacities are seen in the left upper ___ . Heart size can not be assessed . Hilar and mediastinal contours are normal . Old bilateral rib fractures are healing with callus formation .
    OUTPUT:
    
Bilateral opacities , scattered in the upper and lower lobes , most confluent in the left lower ___ , ___ represent multifocal pneumonia . However , given the nodular appearance , a chest CT is recommended to further assess .