Fig. 18
From: Stepwise diagnostic algorithm for high-attenuation pulmonary abnormalities on CT
Pulmonary laceration due to traumatic injuries in a 28-year-old man. a CT image shows a high-attenuation air-fluid level in the right lower lobe (arrows). b The lacerated cyst has decreased in size, and the air bubble has been absorbed (arrows). c Although the air bubble has disappeared, the attenuation of the nodule remains high (arrows). d Attenuation of the nodule has decreased, and subsequent shrinkage of the nodule is shown (arrows)