Organ: Lymphatic system

Lymphatic system: System distributing lymph fluid around the body
Introduction: The lymphatic system is the second circulatory system in the body, with the blood as the better known system. The lymphatic system is part of the immune system and circulates lymph around the body through lymphatic vessels and lymph nodes. An important purpose of the lymphatic system is to remove parts of microbes or dead body cells that are broken down as part of other immune system attacks. Lymph nodes are better known when they swell in response to infection (see swollen lymph nodes).
Introduction: The lymphatic system is part of the body's immune system. It helps the body fight disease and infection. The lymphatic system includes a network of thin lymphatic vessels that branch, like blood vessels, into tissues throughout the body. Lymphatic vessels carry lymph, a colorless, watery fluid that contains infection-fighting cells called lymphocytes. Along this network of vessels are small organs called lymph nodes. Clusters of lymph nodes are found in the underarms, groin, neck, chest, and abdomen. Other parts of the lymphatic system are the spleen, thymus, tonsils, and bone marrow. Lymphatic tissue is also found in other parts of the body, including the stomach, intestines, and skin.1
Condition count: 9 ; see list below.
Organ subtypes: lymph (0), lymph nodes (9), sentinel lymph nodes (0)
Related organs: lymph (0), lymph nodes (9), lymphatic vessels (2), spleen (3), tonsils (7), adenoids (2), bone marrow (9)
Organs: all organs

Diseases list: The following list of medical conditions have 'Lymphatic system' or similar listed as an affected body part in our database:


  • Hodgkin's Disease ... lymph nodes


  • Lymphadenitis ... lymphatic system, lymph nodes
  • Lymphatic Filariasis ... lymphatic system, lymph nodes
  • Lymphedema ... lymphatic system, lymph nodes
  • Lymphoma ... lymphatic system, lymph nodes


  • Mycosis fungoides ... lymphatic system, lymph nodes


  • Non-Hodgkin's Lymphoma ... lymph nodes


  • Sarcoidosis ... lymph nodes
  • Sporotrichosis ... lymph nodes

    1. excerpt from What You Need To Know About Hodgkin's Disease: NCI

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