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Table 3 Summary of immunohistochemical staining

From: Primary colorectal small cell carcinoma: A clinicopathological and immunohistochemical study of 10 cases

Case CK 7 CK 20 Synp Chrom CD 56 NSE EGFR LMWK CK 19 AE1/AE3 TTF-1 CA 125 CDX 2 mCEA
1 - + + + + + + + + + - - - -
2 - + + - + + - + + + - - - +
3 + - - - + - + + + + - - - -
4 - - + - + + - + + + - - - -
5 + - - - + - + + + + - - - +
6 + - - + - + + + + + - - - -
7 - - + + + - + + + + - - - -
8 - - + + + + - + + + - - - -
9 + - + + + + + + + + - - + -
10 - - + + + + + + + + - - + -
  1. Synp = Synaptophysin
  2. Chrom = Chromogranin