Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly has been stable compared to the prior exam from ___ . The evaluation of the lung parenchyma is limited due to low lung volumes and patient rotation , particularly of the left lower lobe . There is no large pleural effusion or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
Limited assessment of the left lower lobe due to patient rotation , however no definite abnormalities are identified . Recommend repeat true upright and lateral radiographs for further evaluation .