Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right basilar pneumothorax has been partially obscured by increased opacity at the right lung base since clamping of the Pleurex tube . Extensive left pleural calcifications and cardiomegaly are similar .
    OUTPUT:
    
Increasing opacity at the right base may be fluid within the loculated air collection or projecting onto the air collection on this single frontal view . If clinically indicated , CT may be helpful to delineate . Findings discussed with Dr ___ ___ phone at ___ on ___ .