Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . Tracheostomy tube is again noted . There is cardiomegaly and mild bilateral pulmonary edema , similar compared to most recent exam . There is no effusion . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Mild pulmonary edema , similar to prior .