This story is part of a series exploring human anatomy and physiology complexities. Each story in this collection showcases discoveries reshaping our understanding of the body's inner workings, ...

Duodenal cancer is a rare type of cancer that forms in the first part of the small intestine. Symptoms can be vague, which can make early diagnosis difficult. In this article, we look at what duodenal ...

Tumors arising in the non-ampullary (extra-ampullary) segment of the duodenum are considered true ‘duodenal cancers’. These primary ‘duodenal’ carcinomas are rare and constitute 35–50% of all small ...