Duodenal cancer

What can cause duodenal cancer?

What are the tests for duodenal cancer?

What is the definition or description of: Duodenal cancer?

What is the treatment for duodenal cancer?

I have a nodule on the duodenum of 22mm and it is flat. What does this mean. Can it turn into cancer if not removed?

Are there any early indicatiors if the thickening of the duodenum is from infection vs cancer or food allergy? Or wait for histology from biopsy?

I had egd shows localized nodular mucosa duodenal bulb and hyperemic gastric body.I also have an adrenal tumor on right side. Is this cancer?

Why do esophageal cancer patients have a feeding tube inserted into the duodenum instead of the stomach?

Any ideas why a person with esophageal cancer will have a feeding tube inserted into the duodenum instead of the stomach?

My girlfriend cant keep hydrated orally. has been on IV drip for 4 months. what can the problem be. She had a colon resection. Is not getting better. No cancer found. Endoscopy revealed ulcers in duodenum.