The term "fossa duodenalis superior" refers to an anatomical feature found in the human body. This area is a depression located in the upper part of the duodenum, which is the first segment of the small intestine. Although there are no direct synonyms for "fossa duodenalis superior", it can be understood by referring to the upper superior part of the duodenal fossa or the superior duodenal fossa. These terms are interchangeable and can be used to describe the same anatomical location. Understanding the terminology used in the medical field is crucial for precise communication and proper diagnosis and treatment of related conditions.