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Relationship between US and histopathological specimens
| Wall layers identified by US | Histopathological specimen |
|---|---|
| 1st layer; High echo | Border + mucosa |
| 2nd layer; Low echo | Mucosa |
| 3rd layer; High echo | Submucosa |
| 4th layer; Low echo | Muscularis propria |
| 5th layer; High echo | Subserosa + serosa |
