Cancer spreads in the body in three ways. In direct extension or evasion, the primary tumor spreads to nearby organs and tissues.
Cancer cells in the lymphatic system break off from the primary tumor and break off and travel to other parts of the body.
The lymphatic system is a group of tissues and organs that make and store cells to fight infection and disease.
Cancer also spreads through the blood, which is called hematogenous spread. In this, cancer cells break off from the primary tumor and break down and enter the blood. It spreads along with the blood to other parts of the body.
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