Lymph

A clear, transparent, sometimes faintly yellow and slightly opalescent fluid that is collected from the tissues throughout the body Lymph flows in the lymphatic vessels (through the lymph nodes), and is eventually added to the venous blood circulation. Lymph consists...

Malignant

In reference to an abnormal tissue growth neoplasm (cancer), having the property of locally invasive and destructive growth and metastasis (spreading). Semantics prevail. For example, invasive pituitary tumors are not thought to be malignant.