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.
Cancer. 1  Lymphoma is cancer of the lymph node and there are two forms of lymphomas â Hodgkinâs disease and non-Hodgkinâs disease. 2  Leukemia is cancer of the blood forming tissues, including bone marrow and lymphatic system and may cause lymph node enlargement. 3  Melanoma â a type of skin cancer.