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. Author manuscript; available in PMC: 2013 Nov 3.
Published in final edited form as: Gastrointest Endosc Clin N Am. 2009 Apr;19(2):10.1016/j.giec.2009.02.006. doi: 10.1016/j.giec.2009.02.006

Figure 1. Esophageal mucosa.

Figure 1

This is an image of an early esophageal cancer. The muscularis mucosae is intact indicating this is a T1a or early staged cancer. Once there is penetration into the submucosa, the risk of metastatic disease increases significantly.