Lymphadenopathy refers to the abnormal enlargement of lymph nodes, which can indicate various underlying conditions, including infections, autoimmune diseases, or malignancies. It is clinically significant as it often serves as a key diagnostic clue, guiding further investigation and management of systemic diseases. A common association is with infectious mononucleosis, where cervical lymphadenopathy is a hallmark finding, highlighting the need for thorough evaluation.

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