Evaluation of cervical lymphadenopathy in children: advantages and drawbacks of diagnostic methods.

INTRODUCTION Cervical lymphadenopathy (LAP) in children is a common clinical diagnostic dilemma. The aim of our study was to analyse ultrasonography, fine needle aspiration biopsy, size and location on the neck to distinguish lymph nodes requiring excision from those that do not. MATERIAL AND METHODS We retrospectively studied 43 cervical lymph nodes that were excised from 43 children aged 0-16 years. We studied the histology of the removed lymph nodes and compared them in terms of size, location, ultrasonography and fine needle aspiration biopsy. Patients were divided into four groups: reactive, malignant, granuloma and other. RESULTS The cause of LAP was reactive in 30 patients (70%), malignant in five (12%) and granulomatous in six (14%) of the surgically removed lymph nodes. Size, age and ultrasonographic findings were not correlated with a higher risk of malignancy. However, the risk of malignancy was significantly higher when the LAP was located in the supraclavicular region than in other cervical regions (p = 0.008). Fine needle aspiration biopsy was made preoperatively in 27 cases (63%) and revealed five (19%) nodes to be malignant and 18 (67%) to be due to a reactive cause. The positive predictive value for benign and malignant cause was 91.3% and 75% (p = 0.01), respectively. CONCLUSION We recommend excisional biopsy if LAP is suspected to be malignant or is located in the supraclavicular region. In case of chronic LAP with no obvious infectious cause or suspected mycobacteria, we recommend fine needle aspiration biopsy as a diagnostic tool. Clinical control and diagnosing of children with LAP should lie in few, skilled hands. FUNDING not relevant. TRIAL REGISTRATION not relevant.