Siewert classification
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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 | edit source]Type I
[edit | edit source]Adenocarcinoma of the distal part of the esophagus. The tumor center is located 1–5 cm above the gastric cardia.
Type II
[edit | edit source]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.
Type III
[edit | edit source]Adenocarcinoma of the subcardial stomach. The tumor center is located 2–5 cm below the gastric cardia.[1][2]
References
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