Hi Dr. What Does The Chest Xray Finding Mean: BILATERAL

Hi Dr.

What does the chest xray finding mean:

BILATERAL UPPER LOBE INFILTRATES PROBABLY KOCH'S IN ETIOLOGY OF UNDETERMINED ACTIVITY; SUGGEST CLINICAL CORRELATION AND COMPARISON WITH OLD FILMS.
LEFT LOWER LOBE INFILTRATES WHICH MAYBE DUE TO ENDOBRONCHIAL SPREAD OR PNEUMONIA, SUGGEST CLINICAL CORRELATION
PLEURAL THICKENING RULE OUT MINIMAL EFFUSION, LEFT

Is this an active PTB? Thanks