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Fig 5. Axial T1-weighted MR images (500/15 ms [TR/TE]) before (A) and after (B) contrast administration. In this illustration, the SI of the tumor mass at the right side on the false vocal cord level, involving the PES, increases from 228 to 445 within the tumor area and, involving the PGS, from 221 to 576 (arrows). The degree of contrast enhancement was 95% for a tumor in the PES and 160% for a tumor in the PGS.
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