Surgical Pathology Criteria

Adenocarcinoma of the Anus

Supplemental Studies

Immunohistology

  Colorectal Type Extramucosal Type
p63 Negative Negative
CK5/6 Negative Negative
CDX2 Positive Negative
CK7 Occasionally positive Positive
CK20 Positive Negative
No specific studies reported of anal carcinomas of colorectal type; phenotype given is that of colorectal adenocarcinoma; extramucosal data from Lisovsky 2007

Genetic analysis

 

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