Oesophageal cancer usually originates in the lining of the oesophagus and can develop in the upper, middle, or lower section of the organ (1).
Epithelial tumour has two main subtypes:
Tumours tend to arise in areas of partial narrowing, i.e. at the pharyngo-oesophageal junction (40%); the junction of the upper and middle third (40%); and where the oesophagus passes through the diaphragm (20%) (6).
Notes (7):
Reference:
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