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Stage II esophageal squamous cell carcinoma
Pronunciation
Stage II is divided into stages IIA and IIB, depending on where the cancer has spread. In stage IIA, cancer has spread (1) into the middle (muscle) layer or the outer (connective tissue) layer of the esophageal wall. The tumor cells look a lot like normal cells under a microscope. The tumor is in either the upper or middle esophagus; or (2) into the middle (muscle) layer or the outer (connective tissue) layer of the esophageal wall. The tumor cells do not look at all like normal cells under a microscope. The tumor is in the lower esophagus or it is not known where the tumor is. In stage IIB, cancer (1) has spread into the middle (muscle) layer or the outer (connective tissue) layer of the esophageal wall. The tumor cells do not look at all like normal cells under a microscope. The tumor is in either the upper or middle esophagus; or (2) is in the inner (mucosal) layer and may have spread into the middle (muscle) layer of the esophageal wall. Cancer is found in 1 or 2 lymph nodes near the tumor. (NCI Dictionary)
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