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CTV proximal tumor
1. GTV + 3-4 cm longitudinal
along mucosa. For very
proximal tumors, the upper border
should not
extend above the level of the cricoid cartilage
unless there is gross disease at that level
.
2. GTV + 1 cm radial
: microscopic spread + para-
esophageal
St.8 (IASLC)
.
Heart level +
0,5 cm
into cardiac tissue (in the
absence of gross invasion)
Wu AJ et Al – Int J Radiat Oncol Biol Phys– 2015