On surgical specimens: n= 34 SCC/32ADK
Microscopic spread from gross tumour:
Oesophagus and GEJ (proximal) spread – 94%
cases < 30 mm
GEJ distal spread – 94% cases < 50 mm
Gao S et al., IJROBP 2007
Marginis from GTV to CTV
EBRO
2017