The radioactive liquid is called a tracer. Then you have a scan. This picks up the radioactive liquid and traces it as it moves through the lymphatic vessels and into the lymph nodes. The first nodes ...

If throat cancer spreads through the lymph vessels, it will likely land in the lymph nodes of the neck. There, it can produce non-tender masses (lymphadenopathy) and then seed new tumors in other ...

Micrometastases are small collections of cancer cells that have been shed from a cancerous tumor and have spread to another part of the body through the blood or lymph nodes. Micrometastases can then ...