Glazer H S, Anderson D J, Wilson B S, Molina P L, Sagel S S
Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110.
Radiology. 1989 Dec;173(3):707-11. doi: 10.1148/radiology.173.3.2813774.
The appearance of pneumothorax on lateral radiographs obtained with the patient erect were reviewed in 100 patients (122 total examinations). A pneumothorax could be seen on the lateral projection in 89% of the examinations (109 of 122). The displaced pleural line was most frequently identified anteriorly or posteriorly and was less commonly identified at the lung apex or in a subpulmonic location. In 11 cases, an air-fluid level was the only recognizable finding of a pneumothorax on the lateral projection. Although in 27% of examinations (32 of 122) the pneumothorax was either not seen (11%) (n = 13) or was a subtle finding (16%) (n = 19), in 14% of examinations (17 of 122) the lateral projection provided helpful information to supplement the posteroanterior projection.
对100例患者（共122次检查）直立位时拍摄的侧位胸片上气胸的表现进行了回顾。在89%的检查（122次中的109次）中，侧位片上可见气胸。移位的胸膜线最常在前部或后部发现，较少在肺尖或肺下位置发现。在11例中，气液平面是侧位片上气胸唯一可识别的表现。尽管在27%的检查（122次中的32次）中气胸未被发现（11%，n = 13）或为细微表现（16%，n = 19），但在14%的检查（122次中的17次）中，侧位片提供了有助于补充正位片的信息。
