A Study On Imaging Manifestation Of Mycoplasma Pneumoniae Pneumonia In Children With Different Age

Objective:. To analyze imaging manifestation of Mycoplasma Pneumoniae Pneumonia (MPP) in children with different age, and improve the recognization of imaging manifestations in MPP, and provide information for clinical diagnosis and evaluation of MPP.Methods:Patients who were diagnosed as "MPP" in hospitalized children from 2010.6 to 2010.8 were enrolled. Retrospective analysis of imaging manifestation was done.19 cases were computed radiography (CR), and 85 cases were x-ray computed tomography (CT).Results:.(1) In 15 infants, small high density patches were shown in 80%, and in 28 toddlers, the manly imaging manifestation was also small high density patch (67.86%),but in the 61 children who were older than 3 years, the manly imaging manifestation was large high density patch (65.47%), and the differences were statistically significant (p<0.01).(2)There were 102 children who had changes in imaging,53 of them had only one lung involved, and 49 of them had both lungs involved. In infant, all of them were two lungs involved(100%), in toddlers,67.86% were both lungs involved, but in children that older than 3years, only one lung involved in most of them (72.13%). And the differences were statistically significant (p<0.01).(3) Of all the 102 children who had changes in imaging,52(50.98%) children showed as small high density patches, and their average days of fever were 5.92±4.39d. 45(44.12%) children showed large high density patches, and their average days of fever were 11.49±7.23d.5(4.90%) children showed as large high density patches with pleural effusion, and their average days of fever were 25±5.15d. The differences were statistically significant (p<0.01).Conclusions:(1) The imaging manifestations of MPP are various. In infants and toddlers, the manly imaging manifestation is small high density patch, and almost always both lungs are involved, but in children that older than 3 years, the manly imaging manifestation is large high density patch, and it usually involved only one lung.(2) The larger the patches in lungs, the longer the days of fever. When there is pleural effusion, the days of fever are significantly longer.