Behaviour of neoplasms

Comparison of benign and malignant neoplasms.


Behaviour of neoplasms


  • Benign and malignant are terms to describe the behaviour of neoplasms
  • Benign and malignant neoplams may be preceded by hyperplasia, metaplasia and dysplasia


  • Invasion and metastases are hallmarks of malignancy
  • The growth rate of benign neoplasms is slow whereas the growth rate of malignant neoplasms is relatively rapid
  • Benign neoplasms have few mitotic figures whereas malignant neoplasms are numerous and usually abnormal
  • Benign neoplasms are well-differentiated. Malignant neoplasms have variable differentiation.
  • The nuclei of benign neoplasms are often normal compared to the nuclei of malignant neoplasms are hyperchromatic and pleomorphic
  • Benign neoplasms have a circumscribed and encapsulated border. Malignant neoplasms have no true capsule and an ill-defined border.

Overall comparison


No comments have yet been made