Pronostic des cancers de l’œsophage — échoendoscopie
Prognosis of esophageal cancers — endoscopic ultrasonography
The diagnostic accuracy of endoscopic ultrasonography (EUS) is currently well known for the staging of esophageal cancer. Numerous studies have shown that the agreement between EUS and histopathology of the resected specimen could reach 85 %for the transmural extent, and 75 % for the nodal extent [1–4].However a certain interobserver variability exists as a function of the lymph nodes site, that can limit the usefulness of the examination [5, 6].
One of the most interesting advantages of EUS is that it gives a relatively exhaustive assessment of the mediastinal and celiac lymphatic sites and of the local extent which permits to establish a classification in a similar manner to the pTNM classification of which the predictive prognostic value is currently well known [2, 7].
With the continuing improvement of surgical and non-surgical techniques, the question can be raised whether EUS is able to predict the prognosis of cancers with such limitations.
The aim of this article is to try to answer some questions and to search for some solutions in order to improve the predictive prognostic value of EUS.
cancer, endoscopic ultrasonography, esophagus, prognosis