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| ==Cocaine toxicity== | | ==Cocaine toxicity== |
| ===General===
| | {{Main|Cocaine toxicity}} |
| *Anatomical pathology findings at autopsy are uncommon (most common situation) or non-specific (atherosclerosis +/- acute [[thrombosis]]).<ref name=pmid1749414>{{cite journal |author=Virmani R |title=Cocaine-associated cardiovascular disease: clinical and pathological aspects |journal=NIDA Res. Monogr. |volume=108 |issue= |pages=220–9 |year=1991 |pmid=1749414 |doi= |url=}}</ref>
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| *Toxicity mechanisms:
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| **Direct effects of norepinephrine on myocytes
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| **Vasospasm leading to myocardial ischemia.
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| ===Gross===
| | No distinctive pathologic findings. May appear older than one would expect, e.g. advanced [[atherosclerosis]] in a young man. |
| Features:<ref name=pmid1346509>{{cite journal |author=Kloner RA, Hale S, Alker K, Rezkalla S |title=The effects of acute and chronic cocaine use on the heart |journal=Circulation |volume=85 |issue=2 |pages=407–19 |year=1992 |month=February |pmid=1346509 |doi= |url=http://circ.ahajournals.org/cgi/pmidlookup?view=long&pmid=1346509}}</ref>
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| *+/-Atherosclerosis out of keeping with age.
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| *+/-Large areas of confluent necrosis.
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| *+/-Fibrosis.
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| ===Microscopic===
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| Features:<ref name=pmid1346509/>
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| *+/-Large areas of confluent necrosis.
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| *+/-Contraction band necrosis.
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| *+/-Fibrosis.
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| *+/-Myocarditis (usu. eosinophilic).
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| ==Heart transplant pathology== | | ==Heart transplant pathology== |