actin organization patterns have been studied in primary patch cultures of colonic epithelial cells from four stages in the development of colon cancer : normal tissue , normal-appearing but preneoplastic cells characteristic of familial polyposis patients , benign tumors or adenomas from familial polyposis patients , and benign and malignant tumors from patients in the general population .
C0040300
normal tissue
C0032580
familial polyposis