Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views demonstrate hyperexpanded lungs . There is no pleural effusion or focal consolidation . There is no pneumothorax . Hilar and mediastinal silhouettes are unremarkable . Heart size is top normal . The patient 's known pulmonary lesions in the left lung base and right upper lobe are better seen on CT of ___ . Retrocardiac streaky opacity , which projects over spine on the lateral view , is noted . A right breast prosthesis is in place .
    OUTPUT:
    
1 . Retrocardiac streaky opacity likely relates to the patient 's known left lower lobe mass , however an adjacent area of atelectasis and / or infection can not be excluded . 2 . Right upper lobe opacity corresponds to the previously noted partly solid and ground glass opacity in the right upper lobe as seen on PET CT of ___ .