Pulmonary laceration
Updates to Article Attributes
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was changed:
A pulmonary laceration results from frank laceration of lung parenchyma secondary to trauma. There is almost always concurrent contusion.
Pathology
Classification
- type I - compression rupture: it is the most common type of laceration that usually occurs as a 2-8 cm lesion in the central lung.
- type II - compression shear: occurs after sudden compression of the lower chest when the lung suffers from a shear injury to the spine.
- type III - direct puncture / rib penetration: occur with a penetrating fractured rib. These lesions are commonly multiple.
- type IV - adhesion tears:
- occurs in sudden injuries of the chest wall where prior pleuropulmonary adhesions had been created.
Radiographic features
Plain film - chest radiograph
Pattern can be similar to contusion but can also have added rib fractures and pneumothoraces.
CT
Regions of pulmonary contusion with added blebs (pneumatocoeles) with air fluid levels.
Due to normal pulmonary elastic recoil, lung tissues surrounding a laceration often pull back from the laceration itself. This results in the laceration manifesting at CT as a round or oval cavity, instead of having the linear appearance typically seen in other solid organs.
Severe laceration have gross disruption of lung parenchymal architecture.
See also
-<strong>type I</strong> - compression rupture</li>- +<strong>type I</strong> - compression rupture: it is the most common type of laceration that usually occurs as a 2-8 cm lesion in the central lung.</li>
-<strong>type II </strong>- compression shear</li>- +<strong>type II </strong>- compression shear: <strong> </strong>occurs after sudden compression of the lower chest when the lung suffers from a shear injury to the spine.</li>
-<strong>type III </strong>- direct puncture / rib penetration</li>- +<strong>type III </strong>- direct puncture / rib penetration: occur with a penetrating fractured rib. These lesions are commonly multiple.</li>
-<strong>type IV </strong>- adhesion tears</li>- +<strong>type IV </strong>- adhesion tears: </li>
- +<li>occurs in sudden injuries of the chest wall where prior pleuropulmonary adhesions had been created.</li>
Images Changes:
Image 4 CT (lung window) ( create )
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