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“树芽”征(tree-in-bud)这一术语最先见于核杆菌沿支气管播散和弥漫性细支气管炎的CT表现中,被认为是小气道和呼吸性细支气管为粘液或炎性物质填塞和扩张所致。最近有报道认为“树芽”征亦可见于多种肺病包括肺部炎症性疾病中。据Aquino等对27例患者的研究,其中26例肺部感染伴有“树芽”征,这些患者包括支气管扩张伴感染、细菌性肺炎、分支杆菌感染、囊性纤维化、支气管纤毛不动综合征、变态反应性支气管炎、肺曲霉菌病及伴类风湿性关节炎的慢性支气管炎,尚有一例吸人性肺炎患者。另有报道认为在卡氏肺囊肿(PCP)、非典型分枝杆菌感染、支气管肺炎及慢性细支气管炎患者中,尽管没有支气管扩张也可出现“树芽”征。
The term “tree-in-bud” was first found in the CT manifestations of M.tuberculosis along bronchiectasis and diffuse bronchiolitis, considered to be mucoid or inflammatory for small airway and respiratory bronchiolitis Due to material congestion and expansion. It has recently been reported that “tree buds” can also be found in a variety of lung diseases, including inflammatory diseases of the lungs. According to a study of 27 patients by Aquino et al., 26 cases of lung infections were accompanied by “tree buds”. These patients included bronchiectasis with bacterial pneumonia, mycobacterial infection, cystic fibrosis, bronchial cilia immobilization Signs, allergic bronchitis, pulmonary aspergillosis and chronic bronchitis with rheumatoid arthritis, there is a case of patients with pneumonia. It is also reported that “tree buds” may occur in patients with Carcarl’s pulmonary cyst (PCP), atypical mycobacteria infection, bronchopneumonia and chronic bronchitis, although there is no bronchiectasis.