Click on image to view larger version.
FIGURE 1. Coronal 18F-FDG PET image (A), 18F-FLT PET image (B), and CT image (C) of patient 11, diagnosed with squamous cell carcinoma in the right upper bronchus (small white arrow) and distally with suspected postobstruction pneumonia (large white arrow) on CT. Avid uptake of 18F-FDG can be seen in a pretracheal lesion and in the primary tumor, which is in an area of elevated uptake, probably postobstructive pneumonia (black arrow). Less avid uptake of 18F-FLT can be seen in the area of the tumor, and little 18F-FLT uptake can be seen in the suspected infected area (black arrow).The bone marrow of ribs and the shoulder bones, liver, and intestine show physiologic 18F-FLT uptake.
