With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lymphoma has the ability to kill.
text_B: Lymphoma is a group of blood cell tumors that develop from lymphocytes -LRB- a type of white blood cell -RRB- .. white blood cell. white blood cell. The name often refers to just the cancerous ones rather than all such tumors .. Signs and symptoms may include enlarged lymph nodes , fever , drenching sweats , unintended weight loss , itching , and constantly feeling tired .. fever. fever. sweats. diaphoresis. itching. pruritus. feeling tired. Fatigue ( medicine ). The enlarged lymph nodes are usually painless .. The sweats are most common at night .. sweats. diaphoresis. There are dozens of subtypes of lymphomas .. The two main categories of lymphomas are Hodgkin 's lymphomas -LRB- HL -RRB- and the non-Hodgkin lymphomas -LRB- NHL -RRB- .. The World Health Organization -LRB- WHO -RRB- includes two other categories as types of lymphoma  : multiple myeloma and immunoproliferative diseases .. World Health Organization. World Health Organization. multiple myeloma. multiple myeloma. immunoproliferative diseases. immunoproliferative diseases. About 90 % of lymphomas are non-Hodgkin lymphomas .. Lymphomas and leukemias are a part of the broader group of tumors of the hematopoietic and lymphoid tissues .. tumors of the hematopoietic and lymphoid tissues. tumors of the hematopoietic and lymphoid tissues. Risk factors for Hodgkin lymphoma include infection with Epstein -- Barr virus and a history of the disease in the family .. Risk factors for common types of non-Hodgkin lymphomas include autoimmune diseases , HIV / AIDS , infection with human T-lymphotropic virus , immunosuppressant medications , and some pesticides .. HIV / AIDS. HIV / AIDS. human T-lymphotropic virus. human T-lymphotropic virus. Eating large amounts of red meat and tobacco smoking may also increase the risk .. tobacco smoking. tobacco smoking. Diagnosis , if enlarged lymph nodes are present , is usually by lymph node biopsy .. lymph node. lymph node. lymph node biopsy. lymph node biopsy. Blood , urine , and bone marrow testing may also be useful in the diagnosis .. bone marrow testing. bone marrow aspiration. Medical imaging may then be done to determine if and where the cancer has spread .. cancer. cancer. Medical imaging. Medical imaging. Lymphoma most often spreads to the lungs , liver , and / or brain .. Treatment may involve one or more of the following  : chemotherapy , radiation therapy , targeted therapy , and surgery .. radiation therapy. radiation therapy. targeted therapy. targeted therapy. surgery. surgery. chemotherapy. chemotherapy. In some non-Hodgkin lymphomas , an increased amount of protein produced by the lymphoma cells causes the blood to become so thick that plasmapheresis is performed to remove the protein .. plasmapheresis. plasmapheresis. Watchful waiting may be appropriate for certain types .. Watchful waiting. Watchful waiting. The outcome depends on the subtype with some being curable and treatment prolonging survival in most .. The five-year survival rate in the United States for all Hodgkin lymphoma subtypes is 85 % , while that for non-Hodgkin lymphomas is 69 % .. five-year survival rate. five-year survival rate. Worldwide , lymphomas developed in 566,000 people in 2012 and caused 305,000 deaths .. They make up 3 -- 4 % of all cancers , making them as a group the seventh-most common form .. In children , they are the third-most common cancer .. cancer. cancer. They occur more often in the developed world than the developing world .. developed world. developed world. developing world. developing world
related.