PMC3562652_01
18F-FDG-PET maximum-intensity-projections (MIPS), (a) before the start of CTx and (b) after 2 cycles of CTx.
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fig1
After two cycles, an 18F-FDG-PET was performed, showing no significant decrease in standardized uptake value (SUV) in the hyper-metabolic regions of the tumor: maximal SUV was 9.5 versus 10.5 in the proximal and 4.4 versus 5.2 in the distal tumor (Figure 1).
CT scan, (a) before the start of CTx and (b) after 2 cycles of CTx.
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fig2
When applying the response evaluation criteria in solid tumors (RECIST) and the Choi criteria (Figure 2) to the CT scan, the tumor was stable.
(a) Densely cellular neoplasm composed of round- and spindle-shaped cells.; (b) necrosis and hyalinization after neoadjuvant therapy, (H&E staining, 10x).
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fig3
The only vital tumor area was in the dorso-cranial area with viability of 15%, while all other parts showed a complete necrosis (Figure 3).