Items tagged “cxr”

Deviation of the azygo-esophageal recess can be normal or pathological. The azygo-esophageal recess is formed by the interface between the right lung and the mediastinal reflection of the azygos vein and esophagus. The line has a variable appearance 1: in its upper third, it deviates to the ri...

ABCDEFGHI can be used to guide a systematic interpretation of chest x-rays. Assessment of quality / Airway The quality of the image can be assessed using the mnemonic PIER: position: is this a supine AP file? PA? Lateral? inspiration: count the posterior ribs. You should see 10 to 11 ribs wi...

A detailed understanding of the structures that make up the normal contours of the heart and mediastinum (cardiomediastinal contour) on chest radiography is essential if abnormalities are to be detected.  Frontal view (PA/AP) Right cardiomediastinal contour From superior to inferior: right p...

The normal position of hemidiaphragms on chest radiography reflects the presence of the heart and subdiaphragmatic organs. Therefore, the hemidiaphragms are not at the same level on frontal erect inspiratory chest radiographs, but are usually within one rib intercostal space height (~2 cm) of ea...

Flattening of the diaphragm is the most sensitive sign on chest radiographs for the presence of hyperinflation of the lungs, usually due to emphysema 1,2. On a lateral chest radiograph, the normal dome of each hemidiaphragm should rise at least 1.5 cm above a line connecting the costophrenic an...