Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs are obtained . Heart is moderately enlarged . Cardiomediastinal contours are normal . The opacity seen in the right lower lobe is stable . Right hemidiaphragm is not readily visilble and the opacity extends to the edge of the right major fissure on the lateral view , reflecting collapse of the lower lobe with possible sparing of the superior segment . The minor fisure is not readily itenfied raising the possibility of right middle lobe collapse as well . Mild left pleural effusion . No pneumothorax .
    OUTPUT:
    
Stable RLL and possibly RML collapse .