Lymphoma

{
  "id": "MLC-T-ENV-016220",
  "term": "Lymphoma",
  "field": "Environment",
  "definition": "1. Lymphomas are tumors in the lymph system, which is responsible for fighting diseases in the body and is part of the immune system. Lymphomas are the third most common form of cancer in children.\n\n2. A malignant (clonal) proliferation of B- lymphocytes or T- lymphocytes which involves the lymph nodes, bone marrow and/or extranodal sites. This category includes Non-Hodgkin lymphomas and Hodgkin lymphomas.\n\n3. Cancer that begins in cells of the immune system. There are two basic categories of lymphomas. One kind is Hodgkin lymphoma, which is marked by the presence of a type of cell called the Reed-Sternberg cell. The other category is non-Hodgkin lymphomas, which includes a large, diverse group of cancers of immune system cells. Non-Hodgkin lymphomas can be further divided into cancers that have an indolent (slow-growing) course and those that have an aggressive (fast-growing) course. These subtypes behave and respond to treatment differently. Both Hodgkin and non-Hodgkin lymphomas can occur in children and adults, and prognosis and treatment depend on the stage and the type of cancer.\n\n4. Lymphomas are tumors in the lymph system, which is responsible for fighting diseases in the body and is part of the immune system.",
  "subject": "Chemicals, toxics and pesticides",
  "references": [
    "Childrens Health Protection Glossary",
    "National Cancer Institute Thesaurus",
    "National Cancer Institute Glossary",
    "ACE Glossary of Terms; America's Children and the Environment Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/lymphoma/"
}