Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there is no significant change . Overall lung volumes are again low , with subsegmental atelectasis at the right lung base . Again seen is an elliptical opacity in the right mid lung which was shown to the loculated fluid on prior CT chest on ___ . There is no new focal consolidation . No pleural effusion or pneumothorax is seen . Cardiomegaly is stable . The right central venous catheter terminates in the low SVC .
    OUTPUT:
    
Stable low lung volumes , with stable subsegmental atelectasis at the right lung base and fissural fluid , similar to prior . No pneumonia .