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Table 2 Immunohistochemical results of 21 SCC cases

From: Primary small cell carcinoma of the esophagus: clinicopathological and immunohistochemical features of 21 cases

Case No Pathology CK EMA NSE Syn CgA CD56 S-100 TTF-1
1 SCC ++ +++ +++ +++ ++ +++ - +++
2 SCC +++ ++ + ++ - + - -
3 SCC ++ +++ ++ +++ + +++ - ++
4 SCC +++ ++ ++ ++ ++ ++ ++ +++
5 SCC ++ +++ - + - +++   -
6 SCC ++ ++ + +++ ++ ++ - +++
7 SCC +++ ++ + ++ + +++ + ++
8 SCC +++ ++ +++ ++ - +++ - ++
9 SCC - - +++ +++ ++ +++ ++ +++
  SqCC +++ ++ - - - - - -
10 SCC - + + +++ +++ - - ++
11 SCC - - - ++ - ++ - -
12 SCC - - - ++ - - - +
13 SCC - - ++ +++ ++ +++ - -
14 SCC ++ - + +++ ++ ++ - +++
15 SCC + ++ - ++ ++ +++ - ++
16 SCC - - - ++ - - - ++
17 SCC ++ +++ ++ +++ + +++ + -
18 SCC - ++ - - ++ - - +++
19 SCC ++ ++ - ++ - +++ - -
20 SCC - - + +++ - ++ - ++
21 SCC - - - +++ +++ - - ++
  SqCC +++ - - - - - - -
Total positive cases (%) 12(57.1) 13(61.9) 13(61.9) 20(95.2) 13(61.9) 16(76.2) 4(19.0) 15(71.4)
  1. SCC, small cell carcinoma; SqCC, squamous cell carcinoma. +, less than 10% of the tumor cells were positive; ++, 10%–50% of the tumor cells were positive; +++, more than 50% the tumor cells were positive; -, negative labeling.