Posterior mediastinal extralobar pulmonary sequestration misdiagnosed as a neurogenic tumor:A case report  

作　　者：Hong-Jie Jin Yue Yu Wei He Yun Han 

机构地区：[1]Department of Thoracic Surgery,Shengjing Hospital of China Medical University,Shenyang 110004,Liaoning Province,China

出　　处：《World Journal of Clinical Cases》2022年第26期9340-9347,共8页世界临床病例杂志

摘　　要：BACKGROUND Pulmonary sequestration-both intralobar and extralobar-is a rare congenital developmental malformation.Extralobar pulmonary sequestrations(EPS)have their own pleura but are separated from the bronchus and usually occur in the left lung.They are mainly found mainly between the lower lobe and the mediastinum.EPS is rarely found within the mediastinum itself,even rarer so in the posterior mediastinum.CASE SUMMARY We report the case of a 27-year-old man who was misdiagnosed with a neurogenic tumor based on preoperative contrast-enhanced computed tomography(CT)and magnetic resonance imaging findings.Contrast-enhanced chest CT revealed a posterior mediastinal mass measuring 1.2 cm×1.4 cm×3.3 cm,which consisted of some cystic areas and showed slight enhancement.The mass was in the 11th paravertebral region and attached to the 11th thoracic vertebra behind the descending aorta in the posterior mediastinum.An arteriole originating from the intercostal artery and a vein originating directly from the hemiazygos vein were found in the pedicle of the mass.The mass was resected in a uniport videoassisted thoracoscopic surgery.During the operation,the pyramid-shaped mass appeared well-encapsulated.Postoperative histopathology established a diagnosis of EPS.One month later,a follow-up CT of the thorax showed good recovery.CONCLUSION Although EPS rarely occurs in the posterior mediastinum,its diagnosis should be considered when posterior mediastinal tumors are suspected.

关 键 词：Posterior mediastinal mass Pulmonary sequestration Extralobar pulmonary sequestration Congenital malformation Video-assisted thoracoscopic surgery Case report 

分 类 号：R563[医药卫生—呼吸系统]