Definition of Staging

Staging: stagingDoing exams and tests to learn the extent of a cancer, especially whether it has spread from its original site to other parts of the body. The following stage numbers are typically used in staging:

  • Stage ICancer cells are found only on the surface of the affected organ or area.
  • Stage IICancer cells are found in the deeper tissues of the organ or area and have spread.
  • Stage IIICancer cells are found in even deeper tissues and have spread to nearby lymph nodes or other nearby areas.
  • Stage IVCancer cells are found throughout the organ or area and in nearby lymph nodes and/or have spread to other parts of the body.


Last Editorial Review: 3/19/2012

Search MedTerms:


Back to MedTerms online medical dictionary A-Z List
Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.