Clinical,imaging and etiological characteristics of mycoplasma pneumoniae in children

CAO Huiping

doi:10.12122/j.issn.1674-4500.2025.01.15

Abstract：Objective To summarize the clinical,imaging,and etiological characteristics of mycoplasma pneumonia in children.Methods The data of 110 hospitalized children diagnosed with mycoplasma pneumoniae infection in Department of Pediatrics of our hospital from November 2023 to June 2024 were retrospectively analyzed.Results Mycoplasma pneumoniae infection was most common in children aged 6-13 years.The main manifestations were respiratory system(100%),among which cough(98.2%)and fever(78.2%)were the most common.Among them,2.8%of the patients presented with pertussi-like symptoms,and 7.0%of the patients presented with low-grade fever.Extrapulmonary manifestations were mainly digestive tract(49.1%).Blood routine examination showed that 31.9%of the children had abnormal white blood cell count,including an increase in white blood cell count of 26.4%and a decrease in white blood cell count of 5.5%.Chest imaging showed bronchitis(64.4%)and patchy hyperdensity(35.6%).In this area,mycoplasma pneumoniae was easily co-infected with influenza virus(including influenza A and B),accounting for 30%.All patients were treated with macrolide antibiotics,67.3%were cured and 32.7%were improved.Conclusion Mycoplasma pneumoniae infection is most common in school-age children,predominantly affecting the respiratory system,extrapulmonary manifestations are primarily observed in the digestive tract.White blood cell counts can either increase or decrease,and chest imaging findings are predominantly bronchitis,Mycoplasma pneumoniae infection is prone to co-occur with influenza virus infection,and no resistance to macrolide antibiotics was detected in this cohort of patients.