The<unk>  is a finding that can be seen on computed tomographic scans of the chest.
It consists of a curvilinear opacity that extends from a subpleural "mass" toward the ipsilateral hilum.
The<unk>  is produced by the distortion of vessels and bronchi that lead to an adjacent area of round atelectasis, which is the mass. The bronchovascular bundles appear to be pulled into the mass and resemble a<unk> <unk> .
Comet tail sign
Lighthouse sign
Puddle sign
Bulging fissure sign
Sherman sign
Steeple sign
Traube sign
Westermark sign