Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A transesophageal tube ends in the stomach , however , the most proximal side port ends at the gastroesophageal junction . Abdominal drains , surgical clips and skin ___ are from prior surgery . Ill - defined opacity at the left lung base is not fully imaged . The right lung base is clear . The heart size is normal . There are marked degenerative changes within the lower lumbar spine .
    OUTPUT:
    
1 . The proximal side port of the transesophageal tube ends at the gastroesophageal junction and could be advanced . 2 . Ill - defined opacity at the left lung base could be further evaluated with conventional chest radiographs .