Oesophagus RT Flashcards
1
Q
Aetiology and incidence of Oesophageal cancer?
A
-2.2% of cancer 6th leading cause of death 5yr SR<25% rare under 25yrs Adenocarcinoma incidence increasing
2
Q
Risk factors for SCC?
A
Tobacco & Alcohol •Diet •Achalasia •Head & Neck cancer •Tylosis, Coeliac disease & Lye ingestion
3
Q
Risk factors for adenocarcinoma?
A
Oesophageal cancer belt” •Poor nutrition •Low intake fruit and vegetables •Drinking hot beverages •No sex bias in endemic variety
4
Q
Where does the oesophagus run?
A
25cm long from cricoid cartilage to O-G Junction
two parts cervical and thoracic
5
Q
What two layers of muscle make up the oesophagus?
A
Outer-longitudinal muscle
Inner-circular muscle
6
Q
Where does the sub mucosal nodes drain to?
A
internal jugular, peri-tracheal, sub-carinal, peri-oesphageal, peri-aortic, peri-cardial, lesser curve of stomach
7
Q
Where does the lower 1/3 drain to
A
(L) gastric and coeliac nodes
•Watershed area is mid-thoracic oesophagus (below this drainage is caudal)
