[Duodenal adenocarcinoma: a rare diagnosis]. / Adenocarcinoma duodenal: un diagnóstico poco frecuente.

Duodenal adenocarcinoma is a rare disease whose symptoms are usually vomit, weight loss and lack of appetite; appearing more frequently in men in their sixties. Upper gastrointestinal endoscopy is the technique chosen for its diagnosis, also relying on other techniques such as endoscopic ultrasonography or computed tomography for the extension study. In this regard we report the case of a patient diagnosed of bulbar duodenal adenocarcinoma in our hospital.