Lymphadenopathy refers to the enlargement or swelling of lymph nodes, which can be caused by a variety of conditions ranging from infections to malignancies. This phenomenon indicates that the immune system is responding to an underlying issue, as lymph nodes play a critical role in filtering harmful substances and facilitating immune responses. Recognizing lymphadenopathy is essential in assessing disorders of white blood cells and lymphoid tissues, as it can provide valuable clues about systemic disease processes.
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