Human cancer under a microscope. The black dots on the right of the image are lymphocytes which are trying to get at the tumor, but are being stopped by cancer-associated fibroblasts. Disclaimer: AAAS ...

Premetastatic cancer cells often spread from the primary lesion through the lymphatic vasculature and, clinically, the presence or absence of lymph node metastases impacts treatment decisions. However ...

Lymphocytes are white blood cells that help protect the body from infection and disease. High or low numbers of lymphocytes may signal a condition, such as an infection, leukemia, or immune deficiency ...

In the 1950s, T cells were yet to be described and the functions of lymphocytes were unknown. But animal experiments had shown that each day, enough lymphocytes enter the blood from the main ...