Air Bronchogram

The air bronchograms seen in this chest x-ray and CT scan represent lucent branching bronchi visible through surrounding (opaque) airspace disease.

Acinar Pattern

The acinar pattern is representative of airspace disease. Seen are ill-defined, round or elliptical nodules measuring 4–8 mm. They have a characteristic “fluffy” appearance and may take on a patchy distribution, with a later tendency to coalesce into a lobar or...

Side Markers

Side Markers (Left vs Right) No image available

Rotation

To assess rotation of the film, compare the distance between a spinous process to each of the clavicles. If the supinous process is closer to one clavicle, that side is rotated posteriorly.

Penetration

To ensure adequate penetration, the thoracic spine should be visible.