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 is performed in direct comparison with the next preceding AP single view chest examination of ___ . On the present examination , the heart size is unchanged and within normal limits . No configurational abnormality is present . The pulmonary vasculature is not congested . The on previous single view chest examination identified right lower lobe area hazy infiltrate has disappeared . No new abnormalities are seen in the right hemithorax . On the other hand , there is now a smaller hazy infiltrate on the left - sided lung base and the lateral view suggests it is located in the periphery of the left upper lobe lingula abutting the heart border . No development of pleural effusions and no pneumothorax in the apical area .
    OUTPUT:
    
Regression of previously identified right lower lobe infiltrate but development of a smaller left - sided lingula infiltrate during the same interval . Considering patient 's history of HIV , PCP infection IS included in the diagnostic list .