因不同的病变就可以产生不同的阴影,所以各种胸部疾病的X线表现是不同的。但有时虽然病理改变不同,临床上也可呈现类似的阴影。一般来说,胸部典型的常见病可用透视方法区分,但仅靠X线阴影来分析鉴别疾病的性质有时比较困难,还必须结合病人的年龄、症状、体征及必要的化验检查来判断。一、胸部透视为什么能区分不同疾病?不同性质的胸部病变在X线荧光屏上或胸片上可表现不同的阴影。如肺炎,因肺泡内充满炎性渗出 Because of different lesions can produce different shades, so a variety of chest diseases X-ray performance is different. But sometimes different pathological changes, the clinical presentation of a similar shadow. In general, chest typical common diseases can be distinguished by fluoroscopy, but only by X-ray analysis to identify the nature of the disease is sometimes more difficult, but also must be combined with the patient’s age, symptoms, signs and the necessary laboratory tests to determine. First, the chest perspective Why distinguish between different diseases? Different types of chest lesions in the X-ray screen or chest X-ray can show different shades. Such as pneumonia, due to inflammatory alveolar infiltration