HUMAN NUTRITION

Detailed explanation-1: -In metastasis, cancer cells break away from the original (primary) tumor, travel through the blood or lymph system, and form a new tumor in other organs or tissues of the body. The new, metastatic tumor is the same type of cancer as the primary tumor.

Detailed explanation-2: -When cancer spreads, it’s called metastasis. In metastasis, cancer cells break away from where they first formed, travel through the blood or lymph system, and form new tumors in other parts of the body. Cancer can spread to almost anywhere in the body. But it commonly moves into your bones, liver, or lungs.

Detailed explanation-3: -Cancer cells can lose the molecules on their surface that keep normal cells in the right place. So they can break away from their neighbours.

Detailed explanation-4: -Surgery induces the formation of new metastatic disease A cancer cell must reach the circulation, survive the host defensive mechanisms, get entrapped at a regional or distant site, and finally invade and prosper within the new metastatic site. Patients with a primary cancer routinely have circulating tumor cells.