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Table 2 Immunohistochemical Expression by Histological Classification

From: Cytokeratin 20 (CK20) and apomucin 1 (MUC1) expression in ampullary carcinoma: Correlation with tumor progression and prognosis

Positive cases (%)
  Intestinal type Pancreatobiliary type Unusual type P*
  (N = 16) (N = 18) (N = 9)  
CK7 13 (81) 17 (94) 9 (100) (p = 0.178)
CK20 16 (100) 4 (22) 6 (67) (p < 0.001)
MUC1 6 (38) 17 (94) 7 (78) (p < 0.001)
MUC2 4 (25) 2 (11) 2 (22) (p = 0.540)
MUC5AC 6 (38) 8 (44) 5 (56) (p = 0.683)
MUC6 7 (44) 5 (28) 5 (56) (p = 0.341)
  1. * χ2 test. The percentage represents sensitivity