Dysplastic and malignant areas in hyperplastic polyps of the large intestine

Pathology. 1989 Apr;21(2):138-42. doi: 10.3109/00313028909059551.


The clinical and pathological findings in a patient with 3 adenocarcinomas of the colon, 16 pure hyperplastic polyps, 1 hyperplastic polyp with adenomatous elements and 1 hyperplastic polyp with malignant transformation to adenocarcinoma within an area of adenomatous dysplasia are described. The possibility of neoplastic transformation of hyperplastic polyps is discussed.

Publication types

  • Case Reports

MeSH terms

  • Adenocarcinoma / pathology*
  • Aged
  • Colonic Neoplasms / pathology*
  • Colonic Polyps / pathology*
  • Humans
  • Hyperplasia / pathology
  • Male
  • Neoplasms, Multiple Primary / pathology*