Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The patient has a history of prior esophagectomy with a retrocardiac air - fluid level again seen , likely relating to gastric pull - through . There is consolidation within the left mid and lower lung concerning for pneumonia . A left pleural effusion is small . Subtle opacity in the right mid lung is also noted which could also represent a focus of pneumonia . No pneumothorax . Heart size is difficult to assess . Mediastinal contour is stable . Hyperdense material is seen within the region of the gastric pull - through in the low chest . Bony structures are intact .
    OUTPUT:
    
Consolidation within the left mid and lower lung concerning for pneumonia with small left pleural effusion . Small focus of opacity in the right mid lung may also represent pneumonia . The patient is status post esophagectomy with gastric pull - through , containing a fluid level .