Mantle Cell Lymphoma (MCL) is a rare and aggressive type of non-Hodgkin lymphoma (NHL) that arises from B-cells, which are a type of white blood cell. It is named after the "mantle zone," an area of the lymph node where the B-cells originate. The condition is characterized by the overproduction of cancerous B-cells, which can spread to various parts of the body, including lymph nodes, bone marrow, and the gastrointestinal tract.
