Siewert classification
The Siewert-Stein classification (often called the Siewert classification in less precise shorthand reference) is a system of anatomical classification used for adenocarcinomas of the esophagogastric junction.
Classifications[edit]
Type I[edit]
Adenocarcinoma of the distal part of the esophagus. The tumor center is located 1–5 cm above the gastric cardia.
Type II[edit]
Adenocarcinoma of the real cardia. The tumor center is located 1 cm above or 2 cm below the gastric cardia. Considered to be true gastroesophageal junction. Minus 2
Type III[edit]
Adenocarcinoma of the subcardial stomach. The tumor center is located 2–5 cm below the gastric cardia.[1][2]
References[edit]
- ^ Siewert JR, Stein HJ. Carcinoma of the cardia: carcinoma of the gastroesophageal junction—classification, pathology and extent of resection. Dis Esophagus 1996;9:173-82.
- ^ Schneider, Paul M.; Mönig, Stefan P. (2017), "Siewert Classification of Adenocarcinoma of the Esophagogastric Junction: Still in or Already Out?", Adenocarcinoma of the Esophagogastric Junction, Springer International Publishing, pp. 47–56, doi:10.1007/978-3-319-28776-8_7, ISBN 9783319287744
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