Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is widespread fine reticular pattern without evidence of focal opacity . Heart size , mediastinal contour , and hila are unremarkable . No pleural effusion or pneumothorax .
    OUTPUT:
    
Persistent fine reticular pattern without evidence of focal opacity is nonspecific and can be seen in the interstitial lung disease , atypical pneumonia , an PCP ___ . Clinical correlation is recommended .