Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . A right upper lobe opacity is concerning for malignancy given a spicule added nodule seen in this location on prior exam . Also noted is opacity at the medial right lung base , question aspiration / pneumonia versus malignant process . Bibasilar atelectasis is noted without large effusion or pneumothorax . Heart size appears within normal limits . Mediastinal contour is prominent . Bony structures are grossly intact .
    OUTPUT:
    
Right upper lobe opacity is concerning for malignancy . Bibasilar atelectasis with opacity at the right medial lung base which is indeterminate . CT may be performed to further assess if clinically warranted .