Heo Manbong, Jeong Jong Hwan, You Jung Wan, Kim Ju-Young, Park Mi Jung, Jeon Kyung Nyeo, Lee Jong Deog, Lee Seung Jun
Department of Internal Medicine.
Department of Radiology, Gyeongsang National University Hospital.
Medicine (Baltimore). 2020 May 29;99(22):e20246. doi: 10.1097/MD.0000000000020246.
Left bronchial isomerism is generally associated with abnormal arrangement of the atrium and abdominal viscera; therefore, its diagnosis is confirmed in early childhood.
Here we report a rare case involving a 36-year-old man with isolated left bronchial isomerism that presented as an asymptomatic severe obstructive ventilatory disturbance during pulmonary function tests performed as part of routine assessments for an orbital wall fracture. The patient was a current smoker and did not show any respiratory symptoms.
Chest computed tomography revealed left bronchial isomerism, and further tests showed that there was no involvement of other organs.
We recommended smoking cessation and the long-term use of an inhaled long-acting bronchodilator.
The findings from this case highlight the causative role of left bronchial isomerism in asymptomatic adults with chronic obstructive pulmonary disease.
Physicians should consider this condition as a cause of obstructive ventilatory disturbances in asymptomatic adult patients.
左支气管异构通常与心房和腹部脏器的排列异常有关；因此，其诊断在儿童早期即可确定。
我们在此报告一例罕见病例，一名36岁男性患有孤立性左支气管异构，在作为眶壁骨折常规评估一部分进行的肺功能测试中表现为无症状的严重阻塞性通气障碍。该患者目前吸烟，无任何呼吸道症状。
胸部计算机断层扫描显示左支气管异构，进一步检查表明其他器官未受累。
我们建议患者戒烟并长期使用吸入型长效支气管扩张剂。
该病例的研究结果突出了左支气管异构在无症状成年慢性阻塞性肺疾病患者中的致病作用。
医生应将这种情况视为无症状成年患者阻塞性通气障碍的一个病因。
