氧化一氮是哮喘和其他肺疾病的表现，诸如慢性肺病、囊肿性纤维化和支气管扩张（气管的反常的变宽）。
Nitric oxide is asign of asthma and other lung diseases, such as chronic obstructive pulmonarydisease, cystic fibrosis and bronchiectasis (the abnormal widening of airways).
方法回顾性分析经手术及病理组织学证实的11例纵隔支气管囊肿CT表现。
Methods CT expression of 11 cases with mediastino bronchial cyst diagnosed by operation and histopathology was analysed.
另合并恶性肿瘤及脓肿各2例，支气管囊肿及陈旧性肺结核、矽肺各1例。
Both 2 patients complicated with malignant tumors or abscesses. Each 1 patient complicated with bronchial cyst, old pulmonary tuberculosis and silicosis.
目的探讨纵隔支气管源性囊肿ct诊断及鉴别诊断。
Objective To investigate ct diagnosis and differential diagnosis of bronchogenic cysts of mediastinum.
方法对20例支气管源性囊肿患者的临床资料进行回顾分析。
Methods Clinical data of 20 cases of bronchogenic cyst were retrospectively analyzed.
方法回顾性分析57例经手术病理证实的支气管囊肿的CT表现。
Methods ct features of 57 patients with pulmonary congenital bronchial cysts confirmed by pathology after operation were reviewed retrospectively.
方法回顾性分析我院9例经手术病理证实的先天性支气管囊肿的影像诊断表现。
Methods X-ray, CT and histopathological manifestations were retrospectively reviewed in 9 patients with congenital bronchial cysts.
结论大部分肺内支气管囊肿的CT表现具有特征性，有助于术前诊断。
Conclusion Most congenital pulmonary bronchogenic cysts show characteristic ct signs, which are helpful to preoperative diagnosis.
结果11例纵隔支气管囊肿的CT表现呈水样密度肿块6例；软组织密度肿块5例，其中囊性肿块3例，实质性和不确定性各1例。
Results In 11 cases, there were watery density tumors in 6 ones and soft tissue tumors in 5 cases among which 3 cases were cystic tumors and one case was parenchymatous and indefinite tumor.
结果11例纵隔支气管囊肿的CT表现呈水样密度肿块6例；软组织密度肿块5例，其中囊性肿块3例，实质性和不确定性各1例。
Results In 11 cases, there were watery density tumors in 6 ones and soft tissue tumors in 5 cases among which 3 cases were cystic tumors and one case was parenchymatous and indefinite tumor.
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