Correct!
1. The anterior segment right upper lobe nodule appears stable compared to priors
The anterior segment right upper lobe nodule shows no clear evidence of growth over the 2-year period between the initial staging chest CT and the repeat staging 18FDG – PET scan. The nodule shows no clear evidence of significant metabolic activity, with the visualized tracer uptake equal to, or slightly less than, mediastinal blood pool activity at the first post-therapy 18FDG – PET scan, and no metabolic activity at repeat staging 18FDG – PET scan 2 years later. There is no evidence of calcification within the nodule, and there are no adjacent satellite nodules.).
Outside imaging with 18FDG – PET 2 years after the patient’s initial lymphoma diagnosis performed as part of the patient’s lymphoma treatment monitoring (Figure 6) was performed.
Figure 6. (A and B) Axial 18FDG – PET scan chest portion of whole-body PET shown] (A, CT attenuation correction image, B, 18FDG fused image) again shows the anterior segment right upper lobe nodule. (C and D) Axial 18FDG – PET scan (C, CT attenuation correction image, D, 18FDG fused image) 2 years after initial lymphoma diagnosis for comparison. (E and F) First restaging axial 18FDG – PET scan (C, CT attenuation correction image, D, 18FDG image), several months after lymphoma treatment was initiated, presented for comparison.
Which of the following represents an appropriate interpretation for this examination? (Click on the correct answer to be directed to the seventh of 12 pages)