title: Invited commentary.
authors.affiliation: Department of General, Visceral and Cancer Surgery, University of Cologne, Kerpener Straße 62, 50937 Köln, Germany. elfriede.bollschweiler@uk-koeln.de
authors.forename: Elfriede
authors.initials: E
authors.lastname: Bollschweiler
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000556:secondary*; D004938:Esophageal Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male