A chest x-ray is a two-dimensional summation image. We spend time synthesizing the superimposed anatomy on the posteroanterior and lateral into a three-dimensional understanding. Computed tomography (CT) is the opposite…
Detecting signs of collapse within the lung is important in the diagnosis of lung disease. For us, it is also a good way to reinforce the anatomy. In general, the…
Here are 12 unknown cases. They are presented in the same manner as quizzes in the text, with questions to guide you. Look carefully at the images before looking at…
On the normal chest x-ray, we see air in the trachea and proximal bronchi because they are surrounded by the soft tissue (water density) of the mediastinum. In the lungs,…
The keys to reading x-rays well are a good understanding of normal anatomy and an orderly search pattern. This chapter reacquaints you with the normal anatomy and helps you develop…
We have already seen how disease can consolidate or collapse a segment or lobe. We now look at other patterns of diffuse and focal lung disease. The lung reacts to…
A “fingertip” knowledge of lobar and segmental anatomy is indispensable for understanding patterns of lung collapse and patterns of lung disease. Some diseases have lobar or segmental distributions; others do…
If part of the lung is radiodense (alveolar pattern, consolidated, water density, airless), it can affect our ability to see adjacent structures. We can use these changes to help us…
The chest x-ray and computed tomography (CT) are part of every physician’s practice. You should have a basic understanding of the anatomy and pathologic findings visible on these images. In…
Three relatively recent imaging techniques, computed tomography (CT), ultrasound (US), and magnetic resonance imaging (MRI), have greatly improved thoracic imaging. In all conventional x-ray techniques, the x-ray beam passes through…
