Objective To investigate the characteristics of high-resolution CT(HRCT)in pulmonary Langrare cell histiocytosis(PLCH).Methods The HRCT imaging data of 25 cases of PLCH confirmed by surgical pathology biopsy or immunohistochemistry were retrospective and analyzed from October 2018 to November 2021,and their HRCT characteristics were analyzed.Results Extensive diffuse interstitial changes around the parenchyma in the middle and lower field in both lungs early on;Diffuse reticular and stellate nodules,Scattered or symmetrically distributed in both lungs.Low-density circular or ovoid balloon shadow is seen in the cavity of the nodule,Different size and wall(less than 1mm),Upper lung field is more common.The cystic cavity was simultaneously with the nodule,Some of the adjacent vesicles are often fused with various forms.Some patients may develop spontaneous pneumothorax,The occurrence of mediastinal gas,hepatosplenomegaly,Osteolytic destruction of the thorax.Patients with advanced lesions,Pulmonary fibrosis with a stellate scar was seen in both lungs,Honeycomb and thick network shading changes.Conclusion Pediatric pulmonary Langerhhan cell histiocytosis is characteristic on HRCT,Bi l ate rally symmetrical diffuse distribution of network star nodules in the central or around the bronchioles of both lungs,The appearance of ground glass density,HRCT imaging examination contributes to the recognition and diagnosis of PLCH,Reduce the rate of misdiagnosis and missed diagnosis of the disease.
万方数据
维普
