Lateral Cervical Radiographs and Adenoid Size: Do They Correlate?

Clinicians have questioned the value of lateral soft tissue neck x-ray (LSTN) in assessing adenoid size. Elaborate cephalometric assays have been devised to measure degree of nasopharyngeal obstruction secondary to adenoid hypertrophy. This study prospectively studied 73 children, aged 11 months to 13 years, with clinical evidence of adenoid hypertrophy to assess how well a LSTN correlates with direct intraoperative observation of adenoid size and nasopharyngeal obstruction. We found a relatively weak correlation (Pearson coefficient r = 0.34) between x-ray and operative observations. We conclude that LSTN is an appropriate examination in the preoperative assessment of children being considered for adenoidectomy. However, this test must be interpreted by recognizing the inherent limitations of evaluating a dynamic structure, such as the nasopharynx, through a non-dynamic modality.

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