Bronchial foreign body Direct sign 不透X线异物：大小、形状与部位 扁形异物正位纵行影，侧位圆形影，可鉴别 Indirect sign P阻塞性肺气肿(obstructive emphysema) P阻塞性肺炎(obstructive pneumonia) P阻塞性肺不张(obstructive atelectasis) 纵隔摆动(movement of mediastium) 16
Bronchial foreign body 伊呼气像与吸气像示纵隔摆动
Bronchial foreign body 88年11月4 1月5日A016 Obstructive atelectasis and pneumonia in right lower lober
Bronchial foreign body A toy whistle in the right main A 2-year-old boy showing obstructive bronchus,with mild obstructive emphysema of the right lung. emphysema 19
Congenital Bronchial Cyst ◆先天性支气管囊肿 ◆肺内：肺囊肿，纵隔内：纵隔支气管囊肿 ◆支气管发育停滞，实心索状结构不能成为贯通的管 状结构，分泌的黏液不能排出，积聚膨胀而成 ◆囊壁菲薄，囊内充满黏液 ◆囊壁内层为上皮，囊壁支气管壁组织，无尘埃沉着 ◆无单独血供，由相邻的肺血管供血 ·囊肿和支气管相通可成含气囊肿或液气囊肿 20