Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs again demonstrate a right chest port with the tip in the low SVC and a normal cardiomediastinal silhouette . Well aerated lungs are clear . Previously seen density in the left lower lung is decreased and there is no pleural effusion or pneumothorax .
    OUTPUT:
    
Clear lungs without evidence of pneumonia . Please note that chest radiograph is not sensitive for PCP pneumonia , and if clinically concerned , a repeat CT chest would be helpful for further evaluation . A preliminary read was provided via telephone by Dr . ___ to Dr . ___ at ___ on ___ .