German guidelines for the diagnosis and treatment of squamous-cell carcinoma and adenocarcinoma of the esophagus—version 4.0

This guideline for the diagnosis and treatment of squamous-cell carcinoma and adenocarcinoma of the esophagus was developed and managed by the German Guideline Program in Oncology (GGPO) of the Association of the Scientific Medical Societies in Germany (AWMF), German Cancer Society (DKG), and German Cancer Aid (DKH). The guideline commission comprised multidisciplinary experts from various professional associations and organizations involved in the management of esophageal cancer, as well as a patient representative. Quality of the evidence is presented using Oxford evidence-based medicine system, and recommendations were graded in a formal consensus process using a recommendation grading scheme.