细支气管的

"In the lungs, the bronchi further divided into smaller and smaller bronchi, and finally into bronchioles."

在肺里，主支气管又进一步分为越来越小的支气管。最后分成细支气管。

Results There was no apparent gender difference among 14 patients. 9 patients were younger than 30 years old. Pathological examination showed that bronchial infiltration of eosinophils in 14 patient (100%), thickened basement membrane of the bronchial mucosa in 12 patients (85.7%), proliferation of smooth muscle cells in 11 patients (78.6%), proliferative mucous gland in 9 patients (64.3%), mucous plug in bronchiole in 8 patients (57.1%), and cicatvization of left ventricle in 10 patients (71.4%).

结果哮喘猝死患者无性别差异，年龄30岁以下者9例(64.3%)；病理改变的特点为支气管管壁嗜酸细胞浸润14例(100%)，粘膜基底膜增厚12例(85.7%)，支气管平滑肌细胞增生11例(78.6%)，粘液腺增生、肥大9例(64.3%)，细支气管内粘液栓形成8例(57.1%)；左心室壁瘢痕形成10例(71.4%)，病变主要位于左心室侧壁和心尖部。

The superficial microvascular networks were sparser, while the subpleural microvascular networks were denser. The superficial blood vessels and the interlobular blood vessels were mutual transitional, and the anastomosing between the superficial blood vessels with the subpleural vessels. According to the branching sequence of the subpleural arteriole, it could be divided into the arteriole, terminal arteriole, precapillary arteriole and capillary in turn. The subpleural capillary networks were mainly web-like, while small holes were also found on the cast. The honeycomb vascular networks were various in size and form at a low magnification. The outline of alveolus, alveolar sac, alveolar duct and respiratory bronchiole and terminal bronchiole, made of microvascular networks, could be found in the cut surface.

胸膜面浅层的微血管网稀疏，深层的胸膜下微血管网致密；胸膜面浅层的微血管与小叶间隔的微血管之间相互移行，与胸膜下微血管之间形成吻合连接；根据胸膜下微动脉连续分支的顺序，常可将其分为微动脉、终末微动脉、毛细血管前微动脉和毛细血管四级；胸膜下毛细血管网主要以网络状的形式存在，但在铸型上均可见数量不等的"小孔状"结构；低倍镜下肺实质内微血管网呈现大小不等、形态各异的蜂窝状结构，可以见到由微血管网构成了肺泡、肺泡囊、肺泡管和呼吸性细支气管以及终末细支气管等结构的轮廓。

Examination of the lungs of young smokers has revealed an accumulation of macrophages in the bronchiolar region and bronchiolitis.1 2 Phagocytosis of cigarette smoke-derived particles is obviously an important defense mechanism with which to neutralize and clear the toxic particulate fraction.

对年轻吸烟患者进行体检发现巨噬细胞在细支气管区积聚并产生细支气管炎症。对吸烟产生的微粒的进行吞噬作用显然是一项重要的防御机制，使有毒颗粒部分失效后并清除出去。

Resujts:① The distribution of lesions are mostly symmetrical, extensive, predominant in the middle and lower lung fields, and posterior areas in peripheral;② There are so many HRCT findings of lung, ILD is predominant: intralobular interstitial thickening 46 cases (100%), ground-glass opacity 41 cases (89.13%), peribronchovascular or centrilobular interstitial thickening 40 cases (86.96%), interlobular septal thickening 38 cases (82.61%), irregular linear opacity 37 cases (80.43%), small nodular opacity 34 cases (73.91%), subpleural line 27 cases (58.70%), bmnchiectasis or bronchiolectasis 19 cases (41.30%), patch opacity 18 cases (39.13%), expiratory mosaic sign 15 cases (32.61%), interface sign 14 cases (30.43%), honeycombing 12 cases (26.09%), emphysema or bulla 3 cases, cystic airspace suspected 1 case, and atelectasis suspected 1 case;③ Mediastinum and pleura: multiple small lymphonodi in mediastinum 41 cases (89.13%), pleural thickening or rough 38 cases (82.61%), esophagoectasis 11 cases (23.91%), unilateral little pleural fluid 1 case, and mediastinal emphysema 1 case.

结果：①皮肌炎肺部病变分布呈对称、广泛、偏中下、偏外后的特点；②肺部HRCT表现多样，以肺间质性改变为主：小叶内间质增厚46例(100%)，磨玻璃影41例(89.13%)，支气管血管束增宽或小叶核心增大40例(86.96%)，小叶间隔增厚38例(82.61%)，不规则纤维索条影37例(80.43%)，结节影34例(73.91%)，胸膜下线27例(58.70%)，支气管或细支气管扩张19例(41.30%)，斑片影18例(39.13%)，呼气相马赛克征15例(32.61%)，界面征14例(30.43%)，蜂窝影12例(26.09%)，肺气肿或肺大泡3例，单纯囊状气腔1例，肺不张l例；③纵隔及胸膜：纵隔小淋巴结影41例(89.13%)，胸膜增厚或毛糙38例(82.61%)，食管扩张11例(23.91%)，单侧少量性胸腔积液1例，纵隔气肿1例。

The HRCT findings in patients with BOOP include: 1 patchy consolidation (seen in 80% of cases) or ground-glass opacity (in 60% of cases), often with a subpleural and/or peribronchial distribution; and 2 small ill-defined nodules (30-50% of cases) which may be peribronchial or peribronchiolar.

HRCT上BOOP的表现包括：1、斑片状实变（见于80％的病例）或毛玻璃样影（见于60％的病例），通常位于胸膜下和/或支气管旁；和2、边界不清的小结节（见于30～50％的病例），可于支气管旁或细支气管旁。

In the early stages of disease, the presence of peribronchiolar fibrosis can also result in an abnormal prominence of the centrilobular arteries, giving rise to an increased reticulation in the peripheral lung.

这里的peribrochiolar，首先是没有血管的字根，其次应该是细支气管，所以应该是&……细支气管周围……&

The results showed that:(1) In COPD group the alveolar walls were broken. The average area of alveolars was 2.46 times as big as the control group, and the average diameter was 1.42 times as compared with the control group. As the diameter of bronchioles was less than 100μm and 100～200μm respectively, the average area of smooth muscle in bronchioles increased to 3.06-fold and 2.13-fold respectively. By electron microscopic, the proportion of Clara cells of respiratory bronchioles in COPD group decreased, the Clara cells were denaturalized, the proportion of Clara cells containing low density secretory granules increased. The airway resistance was 1.84 times while the dynamic compliance was only 70.45% comparing with the control group.

结果表明：(1)光镜下，COPD组大鼠与正常对照组比较，肺泡壁破坏、肺泡腔扩大，平均肺泡面积和平均肺泡直径分别为正常对照组的2.46倍和1.42倍，在直径＜100μm及直径100～200μm的小支气管，COPD组大鼠支气管平滑肌面积分别为正常对照组的3.06倍和2.13倍；电镜下可见，在呼吸性细支气管，Clara细胞占上皮细胞的比例下降，细胞变性，含低电子密度颗粒的Clara细胞比例增加；呼吸功能测定可见COPD组大鼠呼气相气道阻力是正常对照组的1.84倍、动态呼吸系统总顺应性为正常对照组的70.45％。

Results CT and HRCT had more sensitivity and specificity than X-ray chest film.There were more image manifestations in HRCT such as grand grass,net,line,nodular,honeycombing,bronchiectasis,honeycombing cyst,peribronchovascular interstitial thickening and irregularity.There were significant difference between them （P.05）.These patients who were suspected IIP had better control and remission after being treated with hormone and immuno-suppressive drug.

结果 胸部CT在诊断方面比常规胸片有较大的优越性，HRCT则有更高的敏感性和特异性，HRCT表现出磨玻璃影、网状、线条、小结节、蜂窝影，支气管扩张、细支气管扩张、支气管壁和血管壁增厚及不规则等征象，12例临床疑诊为间质性肺炎的患者，经胸部HRCT诊断的12例，而胸部平片诊断的仅有2例，二者比较差异有显著性（P.05），HRCT疑诊的IIP患者，经临床激素及免疫抑制剂治疗，病情均得到控制或缓解。

Fiberoptic brochoscope is a useful instrument to diagnose lung cancer. Bronchial lavages using fiberoptic bronchoscope could not only improve the diagnosis of lung cancer, but also cost little. In addition, bronchial lavages, called"fluid biopsy", is helpful to diagnose primary of secondary carcinoma locating in respiratory tract, including peripheral lung cancer, bronchioalveolar carcinoma, pulmonary metastatic carcinoma and lymphoma.

纤维支气管镜检查是诊断肺癌的有力武器，支气管灌洗不仅能稳定地提高肺癌检出率，而且价格便宜，此外，能研究常规支气管镜未见异常的肺部病变，有助于诊断呼吸道原发性或继发性恶性肿瘤，包括周围型肺癌，细支气管肺泡癌，肺转移癌，癌性淋巴管病，肺部淋巴瘤等，被称为&液相活检&。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。