Objective To make a further understanding of gastroesophageal reflux(GER) by analyzing its clinical and imagingmanifestations.Methods The clinical data and X-ray findings of 132 cases of GER were retrospectively analyzed.Barium mealexamination in erect position were performed in 132 patients with GER,of them esophageal dynamic radiography(EDR) was also carried out in 35.The cases were classified with X-ray typing(0-Ⅴ grade).Results According to the heights reached by the refluxes in the esophagus,GER were divided into Grade Ⅰ(29/132,22%),Grade Ⅱ(58/132,44%),Grade Ⅲ(21/132,16%),Grade Ⅳ(15/132,11%),Grade Ⅴ(9/132,7%).There were 102 cases with vomitting,27 cases with esophagitis,9 cases with hiatal hernia,1 case with hypertrophic stenosis of pylorus,6 cases with gastritis or inflammation of the duodenal bulb and 22 cases with stomach empty slowly.Conclusion Barium meal examination and EDR is simple,and easily accepted by children.It can directly discover GER.The results indicate that barium meal X-ray examination is of considerable importance in diagnosing GER of children.The gastrointestinal barium meal series and EDR should be selected to the patients with clinically suspected gastroesophageal reflux in children.

Objective To improve diagnostic ability of mycoplasmal pneumonia in children.Methods The clinical data and X-ray findings of 563 cases with mycoplasmal pneumonia who hospitalized during 1999～2000 were retrospectively analyzed.Results Obvious abnormalities were seen on the chest films,which were in sharp contrast with the mild clinical respiratory symptoms.Erythromycin produced very effective results.Chest X-ray findings of mycoplasmal pneumonia were as follows:Pulmonary interstitial infiltration(417 cases,74%),parenchymatous infiltration(104 cases,18%),and mixed pattern (42 cases,8%),of them,pleurisy(63 cases,11%)and the hila lymph node enlargement (105 cases,19%).Conclusion The X-ray findings of mycoplasmal pneumonia are variant,a correct diagnosis can be made if one combines X-ray findings closely with laboratory results.