上期试题：当尿酸升高时临床上一般怀疑的疾病是b
A．关节炎
B．痛风
C．骨结核
D．肾病
E．糖尿病
肺淋巴管肌瘤病（Pulmonary lymphangiomyomatosis）应与以下疾病的影像表现鉴别：
↓肺气肿（Emphysema）：
特别以小叶中心性肺气肿鉴别为主，其CT表现为小圆形含气低密度区，但无明确的壁，分布不均匀，多见于上肺，囊一般较小，多介于5-10mm之间，部分融合成团。薄层CT上低密度区中可见小叶中央动脉血管影。而肺淋巴管肌瘤病的气囊有明确均匀的薄壁，分布均匀，血管影位于囊影的边缘。结合性别、年龄有助于鉴别。
Especially with lobular centricity emphysema identification is given priority to, its CT performance for small circular gas low density area, but no clear walls, uneven distribution, see more at the lungs, sac generally smaller, more between 5-10 mm, partly integrated to form a smooth dough. On the thin layer CT centrilobular arteries in low density area visible. The pulmonary lymphatics fibroid disease airbag uniform thin wall is clear, uniform distribution, vessels situated on the edge of the sac shadow. Combining with the gender, age, will help to identify.
↓组织细胞增多症（Histiocytosis）
组织细胞增多症是一种不明原因的罕见的肉芽性疾病，可发生于任何器官，最常发生于肺，并累及单个器官。CT表现为多发结节、空洞结节和后壁囊肿，囊壁厚薄不均，以两上肺为甚，下肺及肋膈角区相对正常；无乳糜胸水
Histiocytosis is a rare granulomatous disease of unknown origin, can occur in any organ, it most commonly occurs in the lung, and involving a single organ. After CT performance for multiple nodules, empty nodes and wall of the cyst, cystic wall thickness, with two on the lung, the lung and rib diaphragmatic Angle area relatively normal; No chylothorax water
↓肺间质纤维化（Pulmonary fibrosis）
肺间质纤维化末期可呈广泛蜂窝状影，但囊状影呈厚壁，形态不规则，囊状影间纤维化明显。病变分布不均匀，以两下肺胸膜下分布为主
End of pulmonary fibrosis can show broad honeycomb, but cystic shadow show thick wall, shape is irregular, cystic fibrosis significantly between shadow. Uneven distribution of lesions, give priority to with the subpleural lung distribution under two
↓结节性硬化症（Tuberous sclerosis）
结节性硬化是多系统累及的显示基因遗传性疾病。当它侵犯肺部时，其临床、病理及影像学表现与肺淋巴管肌瘤病相似。但结节硬化症主要累及血管平滑肌，而极少侵犯淋巴管和淋巴结，故无乳糜胸水；可有皮肤、脑及骨骼损害，而出现癫痫样抽搐、骨硬化性病变等肺外多器官改变。
Tuberous sclerosis is a multisystem involvement shows gene genetic disease. When it invades the lungs, the clinical, pathological and imaging findings and pulmonary lymphatics myoma similar disease. But tuberous sclerosis mainly involving vascular smooth muscle, and rarely infringement of lymphatic and lymph nodes, so no chylothorax water; Can have the skin, brain and bone damage, and sample appeared epileptic convulsions, extrapulmonary many organs such as bone sclerosis lesions.
↓囊状支气管扩张（Cystic bronchiectasis）
支气管扩张囊状影沿支气管分布，壁厚。同时有管状影及气液面。
Bronchiectasis cystic shadow along the bronchial, wall thickness. At the same time have a tubular shadow and gas liquid level.
本期试题：干性支气管扩张是指？
A．干咳为主
B．仅有早晨咳嗽及咳痰
C．纤维支气管镜检见支气管粘膜干燥、萎缩
D．仅有反复咯血，一般无咳嗽、咳痰
E．病变局限于上叶
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