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Common Lung Lesions
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This is an example of bronchopneumonia. Notice how the bottom-front of the lung is darker than the rest of the lung. Usually this part of the lung will be heavier than the more normal, pink lung to the left. You will need to sample the darker tissue of this lung to find out the cause of the bronchopneumonia. | ||||||||||||||||||||||
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| This is another example of bronchopneumonia. The lungs have been removed from the animal. | |||||||||||||||||||||||
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This is an example of chronic pneumonia. Notice how the lung looks darker (or redder) than normal pink lung tissue. This lung may be heavier than normal lung and will not have the "spongy" feel to it. | ||||||||||||||||||||||
| Notice the diseased, darker, redder lung to the right compared to the more normal lung tissue to the left. The diseased lung is heavy compared to the light, spongy normal lung tissue. |  |
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| This is a cross section of the lung above. | |||||||||||||||||||||||
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The photo to the left is an example of a lung abscess. Be sure to cut into lesions such as this. An abscess will have a liquid to "cottage cheese" like appearance in the middle. A tumor or other growth will usually be harder in the middle. |
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| This photo is an example of pulmonary (lung) emphysema. When pinched, this lung will "pop" like bubble-wrap. Air has accumulated in areas where there is normally only tissue. | |||||||||||||||||||||||
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| This is an example of pulmonary consolidation. This lung will be heavy and "wet". It is also much darker than normal lung tissue. The lung may contain blood or other types of cells due to inflammation, or other disease process. The lung will need to be sampled to determine the cause of consolidation. | |||||||||||||||||||||||
| These lesions are small raised areas on the surface of the lung. The lung should be cross sectioned to see if the deeper tissue is involved and to see what the inner part of the lesion looks like. Again the lung will need to be sampled to determine the cause of the lesions. |  |
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| This is an example of a lung worm. These are more common in warmer climates such as the Pacific Northwest. | |||||||||||||||||||||||
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| This is an example of a lung abscess that is connected to the rib cage. It is not uncommon to see adhesions such as this in the cow. | |||||||||||||||||||||||
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This is a lung from an aged cow. You can see an indention in the middle, this is a scar from a previous lesion (i.e. abscess) in the lung | |||||||||||||||
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| Here you can see that the lung is adhered to the rib cage. These types of adhesions are commonly found in cattle. | ||||||||||||||||
| Here, one of the airways in the lung has been cut open. You can see feed-like material in the airway. This could be from the animal getting feedstuff in the airways during death or could have occurred prior to death. Be sure to look closely at the surrounding tissue for any red and inflamed areas, or ulcers that may suggest that the feedstuff was there prior to death. |  |
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| The above photos are of pneumonia. The red areas are the most affected and there may be some collapse of the lung in these areas. | ||||||||||||||||
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| This is an example of an abscess in the lung. The white circles are the abscesses. When you cut into them they will either contain a runny yellow-white material or a cheese like material. | ||||||||||||||||