What is the process of metastasis?

What is the process of metastasis?

(meh-TAS-tuh-sis) The spread of cancer cells from the place where they first formed to another part of the body. 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.

What does metastasis mean?

(meh-TAS-tuh-size) To spread from one part of the body to another. When cancer cells metastasize and form secondary tumors, the cells in the metastatic tumor are like those in the original (primary) tumor.

Is metastasis a tumor?

Metastatic tumors (metastases) can occur in three ways: They can grow directly into the tissue surrounding the tumor. Cancer cells can travel through your bloodstream to distant locations in your body. Cancer cells can travel through your lymph system to nearby or distant lymph nodes.

Does metastasis metastasize?

The most widely accepted theory regarding the development of metastases is that a proportion of cells from a primary cancer become disseminated tumour cells, which then form micrometastases, some of which then progress to become macrometastases.

What is carcinogen in biology?

Listen to pronunciation. (kar-SIH-noh-jin) Any substance that causes cancer.

How do adenocarcinomas form?

Adenocarcinoma develops in cells located in the glands that line your organs (glandular epithelial cells). These cells secrete mucous, digestive juices or other liquids. If your glandular cells begin to change or grow out of control, tumors can form. Some tumors found in glandular cells are not cancerous.

Is adenocarcinoma a tumor?

Some tumors in glandular cells are not cancerous. They’re called adenomas. The malignant tumors are adenocarcinomas, which overtake healthy tissue inside an organ and may spread to other parts of the body.

Can metastasis be cured?

In some situations, metastatic cancer can be cured, but most commonly, treatment does not cure the cancer. But doctors can treat it to slow its growth and reduce symptoms. It is possible to live for many months or years with certain types of cancer, even after the development of metastatic disease.

What causes adenocarcinoma?

Tobacco use is the primary cause of adenocarcinoma and other types of cancer. Toxin exposure. Harmful toxins in your home or work environment can also cause adenocarcinoma. Previous radiation therapy.

What is the most common site of metastasis?

What are the most common sites of metastatic cancer? The most common sites for cancers to metastasize include the lungs, liver, bones and brain. Other places include the adrenal gland, lymph nodes, skin and other organs. Sometimes, a metastasis will be found without a known primary cancer (point of origin).