Surgical Pathology Criteria

Adenosquamous Carcinoma of the Colon and Rectum

Differential Diagnosis

  Colorectal Squamous Carcinoma Colorectal Adenosquamous Carcinoma Colorectal Adenocarcinoma with Squamous Metaplasia
Squamous component Malignant Malignant Benign
Glandular component Absent Malignant Malignant
Both components must be more than focal

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