Enlarged neck lymph nodes in children.

Pediatric cervical lymphadenopathy is a challenging medical condition for the patient, family, and physician. There are a wide variety of causes for cervical lymphadenopathy and an understanding of these causes is paramount in determining the most appropriate workup and management. A thorough history and physical examination are important in narrowing the differential diagnosis. Diagnostic studies and imaging studies play an important role as well. This article reviews the common causes of lymphadenopathy, and presents a methodical approach to a patient with cervical lymphadenopathy.