Objective By analyzing the clinical and imaging features of mediastinal bronchogenic cysts,we hope to reduce the misdiagnosis rate and improve the clinical diagnosis rate.Methods Clinical and imaging data of 27 patients with MBC confirmed pathologically by thoracoscopic resection were collected in the Second Affiliated Hospital of Zhengzhou University.Among them,22 cases were misdiagnosed before surgery.The clinical data and imaging findings of these 22 cases were analyzed,and the imaging characteristics and causes of misdiagnosis were summarized accordingly.Results The preoperative diagnosis rate of 27 cases was 18.5%,and the misdiagnosis rate of 22 cases was 81.5%.Among them,20 cases(74.1%)of anterior mediastinal lesions were misdiagnosed as thymoma,6 cases were misdiagnosed as thymoma,4 cases were misdiagnosed as pericardial cyst and thymoma cyst after considering lymph nodes,2 cases were mistaken for pericardial cyst and thymoma cyst,1 case of cystic teratoma,and 2 cases of mediastinal lesions(7.4%),all of which were misdiagnosed as leiomyoma.In 5 cases(18.5%),the posterior mediastinal lesions were misdiagnosed as neurogenic tumors in 3 cases,esophageal cysts in 1 case and esophageal leiomyoma in 1 case.All 27 cases were single cases,among which 8 cases had fluid density with CT values ranging from-3-12HU with an average of 13HU,and 19 cases had soft tissue density with CT values ranging from 23-73HU with an average of 41HU.Conclusion Comprehensive analysis of clinical manifestations and imaging features of mediastinal bronchogenic cysts can effectively reduce the misdiagnosis rate,improve the accuracy of clinical diagnosis and differential diagnosis,and have important guiding significance for clinicians to make correct diagnosis.
Mediastinal Bronchogenic CystEasy to MisdiagnoseClinicalImage Characteristics