Cancer staging is a core principle in understanding the severity of patients' clinical condition,
predicting the outcome, and planning adequate treatment. Staging is necessary for
explaining epidemiologic changes, defining the disease at presentation, and evaluating the
overall impact of new therapies. In essence, it assigns patients to prognostic groups that
require specific treatments. The steps of staging typically begin by establishing the
histopathologic diagnosis, according to the tumor cell type, and assessing prognosis based …