Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , significant improvement in the left upper lobe opacity , but the opacity in the left upper lobe is seen on lateral view , consistent with slowly resolving pneumonia . A nodular opacity in the inferior portion of the left lower lobe is new since ___ . The lung volumes are normal . Normal size of the cardiac silhouette . Normal hilar and mediastinal structures . No pulmonary edema . No pleural effusions .
    OUTPUT:
    
Since ___ , slowly resolving left upper lobe pneumonia and new nodular opacity in the left upper lobe . Chest CT is recommended to evaluate for reasons behind delayed resolution of pneumonia .