Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A calcified thyroid nodule is noted to the left of the trachea . A right sided PICC terminates in the distal SVC . The cardiomediastinal contour is unchanged . The previously seen right basal airspace opacity has now resolved . There is persistence of the left basal airspace opacity , this may reflect asymmetric pulmonary edema or infection . No pneumothorax seen . No definite pleural effusion .
    OUTPUT:
    
Improvement in the right basal consolidation when compared to the prior study , persistent left basal consolidation .