Colonic Polyps/genetics; Multidrug Resistance-Associated Proteins; Trans-Activators; Adaptor Proteins, Signal Transducing; Adenoma/genetics; Adenomatous Polyposis Coli/genetics; Adolescent; Adult; Aged; Carcinoma/genetics; Carrier Proteins; Colonic Polyps/chemistry; Colorectal Neoplasms, Hereditary Nonpolyposis/genetics; Cytoskeletal Proteins/analysis; Cytoskeletal Proteins/genetics; DNA-Binding Proteins/analysis; DNA-Binding Proteins/genetics; Female; Humans; Immunohistochemistry; Loss of Heterozygosity/genetics; Male; Middle Aged; MutL Protein Homolog 1; MutS Homolog 3 Protein; Neoplasm Proteins/analysis; Neoplasm Proteins/genetics; Nuclear Proteins; Trinucleotide Repeat Expansion/genetics; beta Catenin