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Anatomical subsites
1. Cervical oesophagus (C15.0
)
begins: lower border of the cricoid cartilage
ends:
thoracic inlet (suprasternal notch). 18 cm distal upper incisor teeth
2. Intrathoracic oesophagus (C15.3-5
)
Upper: begins: thoracic inlet (about 18 cm) ends: tracheal bifurcation (about 24 cm)
Mid: begins: tracheal bifurcation (about 24 cm) ends: 32 cm distal upper incisor teeth
Lower:
About 8 cm long and includes abdominal oesophagus. Ends about 40 cm.
3. Oesophago-gastric junction (C16.0)
Institute of Pathology | Alexander Quaas
Gastrointestinal Cancer Group Cologne (GCGC)
Definition of oesophago-gastric junction: There is no universally agreed definition!
For histologists:
junction of squamous epithelial cells to cylindric epithelial cell
of the stomach
For surgeons:
passage through the diaphragm
For gastroenterologists:
junction at the beginning of proximal gastric folds
In Japan:
at the distal end of palisade venes
Japanese Classification of Esophageal Cancer, 11 edition Esophagus, (2017) 14:1-65