TED-Ed: How does cancer spread through the body? - Ivan Seah Yu Jun

The video explains how cancer spreads through the body, a process known as metastasis. It describes the three main routes of metastasis: transcoelomic, lymphatic, and hematogenous spread. Theories by Stephen Paget and James Ewing are discussed, highlighting the complexity of metastasis. The video also covers current research and treatments, including immunotherapy, which aims to harness the immune system to combat cancer. Understanding metastasis is crucial for developing effective treatments for advanced-stage cancers.

What is the process called when cancer spreads from its original site to other parts of the body?

• Metaphysics

• Metabolism

• Metastasis

• Metamorphosis

Which route of metastasis involves cancer cells spreading through the lymphatic system?

• Transcoelomic spread

• Neural spread

• Lymphatic spread

• Hematogenous spread

According to the seed and soil theory, what determines the site of cancer metastasis?

• The size of the tumor

• The microenvironment compatibility

• The patient's age

• The type of cancer

Which theory suggests that the site of metastasis is influenced by the vascular and lymphatic channels?

• Ewing's theory

• Vascular theory

• Seed and soil theory

• Lymphatic theory

What is a recent area of interest in cancer treatment that involves using the immune system?

• Gene therapy

• Chemotherapy

• Radiation therapy

• Immunotherapy