Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Analysis performed in direct comparison with the next preceding similar study of ___ . On previous examination identified residual densities on the right base have now cleared up completely and the right hemithorax does not show any pulmonary abnormalities with the exception of a mild thickening of the minor fissure . On the left side on the other hand the lower lobe area demonstrates now a diffuse haze with crowded vascular structures and perivascular densities consistent with an inflammatory process . Comparison with the previous study shows clearly that this process has developed during the last two months . No other significant new abnormalities are seen . There is no pulmonary vascular congestion and no pneumothorax in the apical area .
    OUTPUT:
    
New left lower lobe parenchymal densities matching the clinical findings of abnormal findings on the left base and consistent with new pneumonic process . It is recommended to perform followup chest examinations .