Staging is the process used to find out the amount of cancer in the body and their locations. The information is used by doctors to formulate the patient treatment plan and to determine their prognosis. There are four different ways staging is done i.e. pathological staging, post-neoadjuvanat or post-therapy staging, clinical staging and restaging (done when cancer recurs after treatment). The four factors used in staging include: site of primary tumor, the tumor size, the involvement of lymph nodes and metastases. Tests done to enable staging process include imaging tests, pathological tests, surgical reports, laboratory tests and physical examination.