Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low resulting crowding of the pulmonary bronchovascular structures . The heart is not enlarged . The cardiomediastinal contour is unchanged compared to prior studies . There is persistent subtle airspace opacity in the right mid to lower lung , this may reflect the residua of the patient 's known pneumonia . The left lung is clear . No pleural effusion seen . Radiopaque material in the left upper quadrant consistent with prior splenic embolization .
    OUTPUT:
    
No significant interval change when compared to the prior study .