Answer:
HL stands for Hodgkin's Lymphoma, which is a type of lymphoma that is characterized by the presence of specific abnormal cells called Reed-Sternberg cells. These cells are large and distinctive, making them relatively easy to identify under a microscope. Hodgkin's Lymphoma tends to start in a single lymph node and then spread to other nodes nearby.NHL stands for Non-Hodgkin's Lymphoma, which is a type of lymphoma that does not involve Reed-Sternberg cells. Non-Hodgkin's Lymphoma is a more heterogeneous disease, with many different subtypes that can behave very differently. Unlike Hodgkin's Lymphoma, Non-Hodgkin's Lymphoma can start in any lymph node or tissue in the body, and can spread to other organs.