Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . There is a right - sided Port - A - Cath which terminates in the lower SVC . Streaky opacities in the left lower lobe likely reflect known bronchiectasis ( as seen on prior CT Chest ) . There is a new streaky opacity in the retrocardiac region which given bronchiectasis in this region raises concern for bronchial mucoid imaction though atelectasis / pneumonia can not be excluded . There is no large pleural effusion or pneumothorax . Visualized osseous structures are unremarkable . Known nodules from metastatic rectal cancer is incompletely evaluated on this exam .
    OUTPUT:
    
Subtle increase in streaky in the left lower lobe could reflect known bronchiectasis with superimposed mucoid impaction . Pneumonia not excluded .