I89: Other noninfective disorders of lymphatic vessels and lymph nodes
I89.1: Lymphangitis
Fluid forms in tissue throughout the body every day. This tissue fluid is the lymph. The lymph is carried around the body by lymph vessels. The lymph vessels run around the entire body and are connected to blood vessels. At some points, there are lymph nodes along the lymph vessels. Pathogens are rendered harmless in the lymph nodes, for example.
You have lymph vessels that have become inflamed. The inflamed lymph vessels are usually visible as red stripes in the skin. The inflamed lymph vessels may also be painful. The lymph vessels can be inflamed by pathogens, for example.
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