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The 14Gy50% isodose line (yellow line) was shown in a sequence of axial view for regrowth tumor; the prescription isodose volume was 2.6cc. The blue line shows previous irradiation area (PIV1.7cc, 14Gy55% isodose line). The 18Gy and 10Gy irradiation area were marked by the inner and external green line each.
