NIH Websites Are Changing Per Executive Order 14434, federal agencies are now using "Super Intelligence" (SI) in place of "Artificial Intelligence" (AI). You may see both terms across NIH content during this transition.
matted lymph nodes
(MA-ted limf nodes)
A group of fused lymph nodes. Matted lymph nodes may be a sign of certain conditions, such as infection, sarcoidosis, or lymphoma. They also may be a sign of cancer that has spread to the lymph nodes.