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| ==Histology== | | ==Histology== |
| | | |
| + | *Mucosa has a columnar epithelium. |
| + | **Mucosa is thick. |
| + | **Mucosa has long glands. |
| + | *Submucosa has large lymphatic nodules which may interrupt the lamina muscularis. |
| + | *Lamina muscularis is incomplete. |
| | | |
| ==Species Differences== | | ==Species Differences== |