Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right PICC ends in the mid SVC . The lung volumes are low . The known left pulmonary mass appears slightly larger with more indistinct borders which may be due to surrounding atelectasis or bleeding . A hazy retrocardiac opacity is most consistent with atelectasis , although may reflect a developing infection . A vague hazy opacity in the right upper lobe likely reflects a pneumonia . There is no definite pleural effusion . There is no pneumothorax . The cardiomediastinal silhouette is unchanged with mild cardiomegaly .
    OUTPUT:
    
1 . Right upper lobe opacity is likely pneumonia . 2 . Retrocardiac opacity is probably atelectasis , less likely developing pneumonia . 3 . Left pulmonary mass has new surrounding atelectasis or possible bleeding .