I had a ct scan and it is indicated that the duodenum wall is thickening. I know this is not common and a visit to a gastro doctor came with an answer of two distinct possibilities -- inflammation or tumor like a donut that is closing. I am not keeping any solid food down - no pain or nausea. Will have endo scope tomorrow with then a visit most likely to a surgical oncologist. Is it a high risk of cancer?
At this point it is difficult to be certain. Duodenal cancers generally present as a mass rather than just thickening. An endoscopy will definitely tell the presence of any overt cancer and also biopsy it for confirmation. If the endoscopy is normal, then you should take some antibiotics and anti-inflammatory Chat Doctor.  Another option is to get a PET scan done now. I would suggest the former.