Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Cardiomegaly is again noted . There is underpenetration in the left lower lung in the setting of large body habitus which somewhat limits assessment of the left lower lobe . There is no convincing evidence for pneumonia though left lower lobe suboptimally assessed . No pneumothorax . No large effusion . No edema or congestion . Cardiomegaly is mild . Mediastinal contour is unchanged . Imaged osseous structures are intact .
    OUTPUT:
    
Cardiomegaly , no convincing evidence for pneumonia or edema . Left lower lobe suboptimally assessed given large body habitus .