Szamosi A
Department of Thoracic Radiology, Karolinska Hospital, Stockholm, Sweden.
Acta Radiol. 1993 Jul;34(4):339-45.
Sixty-nine consecutive cases were collected where subcarinal masses had been detected on conventional chest radiographs, including p.a., lateral and oblique views. The subcarinal masses represented metastases from lung carcinomas, from carcinomas in other organs or lymphomas. The radiologic findings were of 3 types: a) distortion of the mediastinal/lung interface; b) abnormal density of the subcarinal region; and c) deformation of the inferior wall of the left or right main bronchus, with or without simultaneous deformation of the tracheal carina. These changes occurred alone or in combination with each other. In the individual patient the subcarinal masses did not appear equally well on all radiographs obtained in different projections: on average they could be discerned in only 2 (1.86) projections out of the 4 obtained (p.a., lateral, LAO, RAO). There were no false-positive cases in the series.
收集了69例连续病例，这些病例在常规胸部X线片（包括正位、侧位和斜位片）上发现有隆突下肿块。隆突下肿块为肺癌、其他器官癌或淋巴瘤的转移灶。放射学表现有3种类型：a）纵隔/肺界面变形；b）隆突下区域密度异常；c）左或右主支气管下壁变形，伴或不伴有气管隆突同时变形。这些改变可单独出现或相互合并出现。在个体患者中，隆突下肿块在不同投照角度获得的所有X线片上显示情况并不相同：平均而言，在获得的4张片子（正位、侧位、左前斜位、右前斜位）中，仅能在2张（1.86张）片子上辨别出肿块。该系列中无假阳性病例。
