Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Exam is slightly limited secondary to patient positioning and low lung volumes . Streaky right basilar opacity is most likely atelectasis . The lungs are otherwise grossly clear . There is no overt edema . There is moderate cardiac enlargement likely accentuated by technique and positioning . Median sternotomy wires are intact . Degenerative changes are noted at the left shoulder .
    OUTPUT:
    
Probable right basilar atelectasis . Cardiomegaly without definite superimposed acute cardiopulmonary process .