Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Prior vascular congestion in the lungs and mediastinum has resolved , and lungs are well expanded . There is a fine granular abnormality in the right midlung on the frontal view , probably in the superior segment of the right lower lobe . I ca n't be sure if it was present on the low resolution AP supine portable chest radiograph postoperatively on ___ , and we do not have preoperative chest radiographs so I do not know if it is acute . However this could well be pneumonia , especially vertically due to aspiration when supine . Atelectasis in the lingula could also be contributing to cough , but probably not fever . Heart size is normal . Heart is normal size . There is no pleural abnormality .
    OUTPUT:
    
Possible right lower lobe pneumonia . No evidence of cardiac decompensation .