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.
Swollen lymph nodes are normally caused by viruses or bacteria. Lymph nodes or lymph glands are very important because it can fight bacteria, viruses, and causes of other sickness. Swollen lymph nodes can appear in armpits, chin, neck, ear, and other regions of the body.