The assessment of adenoidal size by radiological meansThe purpose of this study was to evaluated the accuracy of radiology in the assessment of both adenoidal size and the size of the nasopharyngeal airway. There was a good correlation between the preoperative assessment of the size of the adenoid by radiology and the actual size of the adenoid removed at surgery. A method of estimating the size of the nasopharyngeal airway is described. There was a good inverse correlation between the size of the airway and the weight of the adenoid.