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Table 1 Immunohistochemical analysis of renal cell carcinoma, rectal signet ring cell carcinoma and signet ring cell component in renal cell carcinoma

From: Signet ring cell carcinoma of rectum metastasizing to synchronous renal cell carcinoma: a case report

Antibody RCC Signet ring cell carcinoma Signet ring cells in metastatic tumor
CK20 + +
CDX2 + +
Vimentin +
E-Cadherin +
MLH1 / / Loss of nuclear signal
MSH2 / / Loss of nuclear signal
PMS2 / / Loss of nuclear signal
MSH6 / / Nuclear expression
  1. RCC Renal cell carcinoma, CK20 Cytokeratin 20, CDX2 Caudal-type homebox 2, RCC Renal cell carcinoma, MLH1 MutL homolog 1, MSH2 MutS homolog 2, PMS2 Postmeiotic Segregation Increased 2, MSH6 MutS homolog 6