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| ==Pulmonary infarct== | | ==Pulmonary infarct== |
| *[[AKA]] ''lung infarct'', ''lung infarction'', ''pulmonary infarction''. | | *[[AKA]] ''lung infarct'', ''lung infarction'', ''pulmonary infarction''. |
| ===General===
| | {{Main|Pulmonary infarct}} |
| *Uncommon because of the dual blood supply (systemic via the bronchial arteries, pulmonary via the pulmonary arteries).
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| Common causes:<ref>URL: [http://emedicine.medscape.com/article/908045-overview http://emedicine.medscape.com/article/908045-overview]. Accessed on: 12 April 2012.</ref>
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| *[[Pulmonary embolism]].
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| *[[Sickle cell disease]].
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| Less common causes:
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| *Lymphoma, esp. [[acute promyelocytic leukemia]].
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| *Drugs, e.g. chemotherapy.
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| *[[Vasculitis]].
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| *Others.
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| ===Gross===
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| *Lung periphery, classically described as wedge-shaped.
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| Note:
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| *In a histologic section, the classic wedge-shaped infarct is triangular:
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| **Base of triangle on the pleural aspect.
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| **Point furthest from the pleura close to the compromised artery that lead to infarction.
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| Image:
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| *[http://www.sciencephoto.com/media/258474/enlarge Pulmonary infarct (sciencephoto.com)].
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| *[http://www.flickr.com/photos/pulmonary_pathology/3732297830/ Pulmonary infarct (flickr.com)]
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| ===Microscopic===
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| Features:
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| *[[Necrosis]] of alveolar walls - loss of nuclei.
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| *Alveolar hemorrhage.
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| ====Image====
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| <gallery>
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| Image:Pulmonary_infarct_intermed_mag.jpg | Pulmonary infarct - low mag. (WC)
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| </gallery>
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| =See also= | | =See also= |