The<unk> -Stein classification (often called the<unk>  in less precise shorthand reference) is a system of anatomical classification used for adenocarcinomas of the esophagogastric junction.
Siewert classification
Nissen-Lie classification
Pipkin classification
Frykman classification
Wassel classification
Gartland classification
Herscovici classification
Haruguchi classification