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                      May 2004                   Case - 13  

                        Dr  Sampurna Roy  MD    

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                  Clinical History: A 58 year old male with an erythematous, crusted plaque

                      (4cm in diameter)  in the perianal region.   The tumour cells show strong

                      positivity for PAS , mucicarmine and alcian blue.

                    Immunohistochemistry:  CEA : positive,  CK7: positive,   CK20 : negative.

                                        

                                                   More sections:                 Cytokeratin 7  

                                                   

                                                                        DIAGNOSIS:

                                            Dart

 

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