The genus Aesculus comprises 13-19 species of woody Trees and Shrubs native to the temperate northern hemisphere (with 6 species native to North America and 7-13 species native to Eurasia). There are also several hybrids.
Lymphoma is a form of cancer that affects the immune system-specifically, it is a cancer of immune cells called lymphocytes, a type of white blood cell. There are two broad types of lymphoma and many subtypes. The two types of lymphoma are described as: Hodgkin's or non-Hodgkin's.
What is lymphoma? Lymphoma occurs when lymphocytes (white blood cells that help to fight infection) become out of control. They divide in an abnormal way or do not die when they should. Healthy lymphocytes travel around your body in your lymphatic system, which is part of your immune system.