[Cytophotometric expression of the tumor markers CD-34 and factor VIII in colorectal cancer].

Objectives: In colorectal cancer, to describe the cytophotometric expression of the CD-34 and Factor VIII; to evaluate the degree of correlation between them; and to compare the CD-34 and Factor VIII expressions in relationship to label index and optical density.

Methods: Seventeen cases of colorectal adenocarcinoma recovered from paraffin-embedded archival tissue and confirmed by hematoxilin-eosin staining, were submitted to streptavidin-biotin-peroxidase immunohistochemical method. In this process was used the tumor markers CD-34 and Factor VIII.