Metastasis

Metastasis is the process by which cancer cells break away from the original tumor and spread to other parts of the body, forming new tumors. The spread usually happens through the bloodstream or the lymphatic system. Once a cancer has metastasized, it's generally more advanced and harder to treat.

Origin

From the Greek metastasis, meaning "a change" or "a moving from one place to another." It entered medical usage in the nineteenth century to describe the transfer of disease from one organ to another that isn't directly connected to it.

Significance in Asbestos Context

In asbestos-related cancers such as mesothelioma and lung cancer, whether the disease has metastasized affects staging, treatment options, and prognosis. Mesothelioma tends to spread locally within the chest or abdomen before it reaches distant sites, but advanced cases can involve lymph nodes, the opposite lung, or distant organs. For a legal claim, medical records documenting the extent of spread help establish how severe the illness is and the damages involved, including pain, shortened life expectancy, and the cost of care.

Example Sentence

The oncologist explained that the metastasis to my lymph nodes moved my mesothelioma to a later stage and changed the treatment plan.

Related Terms

Mesothelioma, Staging, Lymph Nodes, Prognosis, Tumor, Lung Cancer

Notes

• Ask your oncologist how staging scans (CT, PET, or MRI) describe any spread, and request copies of the radiology reports.
• Documentation of metastasis and its effects supports damages for pain, disability, and shortened life expectancy.
• Keep a record of how the disease's spread affects daily functioning; it can matter for both medical care and a claim.