Tumour Progression on:
[Wikipedia]
[Google]
[Amazon]
Tumor progression is the third and last phase in
Progression
entry in the public domain NCI Dictionary of Cancer Terms Carcinogenesis {{Oncology-stub
Tumor progression is the third and last phase in tumor
A neoplasm () is a type of abnormal and excessive growth of tissue. The process that occurs to form or produce a neoplasm is called neoplasia. The growth of a neoplasm is uncoordinated with that of the normal surrounding tissue, and persists ...
development. This phase is characterised by increased growth speed and invasiveness of the tumor cells. As a result of the progression, phenotypical changes occur and the tumor becomes more aggressive and acquires greater malignant potential. Together with the progression, more and more aneuploidy
Aneuploidy is the presence of an abnormal number of chromosomes in a cell, for example a human cell having 45 or 47 chromosomes instead of the usual 46. It does not include a difference of one or more complete sets of chromosomes. A cell with any ...
occurs. This may be evident as nuclear polymorphism.
See also
*Tumor initiation Tumor initiation is defined as "a process in which normal cells are changed so that they are able to form tumors". It is the first phase in tumor development. Mutagens, substances that cause cancer can be tumor initiators.
See also
* Tumor promo ...
* Tumor promotion Tumor promotion is a process in carcinogenesis by which various factors permit the descendants of a single initiated cell to survive and expand in number, i.e. to resist apoptosis and to undergo clonal growth. This is a step toward tumor progress ...
References
External links
Progression
entry in the public domain NCI Dictionary of Cancer Terms Carcinogenesis {{Oncology-stub