Kaneki T, Kubo K, Sone S, Kawashima A
First Department of Internal Medicine, Shinshu University School of Medicine, Matsumoto.
Intern Med. 1998 Oct;37(10):877-9. doi: 10.2169/internalmedicine.37.877.
Spontaneous pneumomediastinum (SPM) is an uncommon disorder. The mechanism of spontaneous pneumomediastinum has been speculated as follows: when air pressure in the alveoli rapidly increases, free air leaks from ruptured alveoli and accumulates along the bronchovascular tissue sheath, and then free air moves toward the mediastinum. In this case report of a 19-year-old man of SPM, a chest computed tomography (CT) revealed air in a tubular shape along the pulmonary artery in the apico-posterior segment of the left lung field. This is the first case in which the process of SPM could be identified by chest CT.
自发性纵隔气肿（SPM）是一种罕见的疾病。自发性纵隔气肿的机制推测如下：当肺泡内气压迅速升高时，游离气体从破裂的肺泡漏出，并沿支气管血管组织鞘积聚，然后游离气体向纵隔移动。在这份关于一名19岁自发性纵隔气肿男性患者的病例报告中，胸部计算机断层扫描（CT）显示左肺野尖后段沿肺动脉有管状气体。这是首例通过胸部CT能够明确自发性纵隔气肿过程的病例。
