A 60-year-old man presents to the emergency department with worsening shortness of breath and a non-productive cough. He has congestive heart failure and was treated three weeks earlier at a neighboring hospital. On examination, he has normal vital signs and marked bilateral pitting lower limb edema. A chest X-ray demonstrates the opacity seen here. A consultant recommends administering diuretics and repeating the chest X-ray in the morning. What changes would you expect to see in the opacity on repeat X-ray?
A. Lucency in the center
B. Increased size
C. Disappearance
D. No change in size
Find the answer, discuss this case, and more on Figure 1.
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