Correct!
4. All of the above
The patient is immunocompromised because of her Hodgkin’s disease and recent stem cell transplant. The CT scan is indicated to better define her thoracic process since the chest X-ray was unhelpful. The PET scan is useful in looking for residual disease.
Her CT scan shows a miliary pattern (Figure 1) and her PET scan (Figure 2) shows increased tracer uptake in the left axilla.
Figure 1. Representative images from the thoracic CT scan. It shows scattered small (<5 mm) nodules. Click here for a movie of the CT scan.
Figure 2. PET scan shows uptake in left axilla (arrow)
Which of the following would be least likely to explain the miliary pattern on the chest CT scan?
