RT Book, Section A1 Linzer Sr., Jeffrey F. A2 Tenenbein, Milton A2 Macias, Charles G. A2 Sharieff, Ghazala Q. A2 Yamamoto, Loren G. A2 Schafermeyer, Robert SR Print(0) ID 1155167669 T1 Neck Masses T2 Strange and Schafermeyer's Pediatric Emergency Medicine, 5e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781259860751 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1155167669 RD 2023/06/03 AB Most common neck masses in children are benign reactive lymphadenopathy and lymphadenitis.Congenital neck lesions can present even after the first decade of life often with an infection or obstruction.Occasionally, a neck mass may be related to a systemic illness or sign of a neoplastic condition and further investigation is warranted particularly if there is supraclavicular lymphadenopathy.Neck masses that affect the airway require immediate intervention.Laboratory testing is often not necessary in the evaluation of cervical lymphadenopathy, as the cause can usually be determined by the history and physical examination.An enlarged cervical mass that does not improve after 4 to 6 weeks needs to be referred to a subspecialist for further evaluation.