adenomatous polypi ( polypous adenoma ) , villous polypi ( villous adenoma ) , and certain rare intestinal polypi , such as familial polyposis coli , multiple polyposis of the entire gastro-intestinal tract , as well as the gardner- and turcot-syndromes , are some of those polypi which depending on their size tend to malignant degeneration .
C0021853
intestinal
C0032580
familial polyposis coli