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NBME 17 Answers

nbme17/Block 4/Question#31 (reveal difficulty score)
A 60-year-old man comes to the emergency ...
Mesenteric venous thrombosis ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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submitted by โˆ—andro(269)
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There are two types of infarcts : Pale infarcts - occurs in organs with a single end arterial blood supply
Red infarct ( also known as hemorrhagic ) - occurs in venous occlusion and tissues with multiple blood supplies ( eg liver , lung , intestine , testes )

Our patient clearly has a red infarct of the small intestine due to " mesenteric venous occlusion " .

The cause may very well be thrombosis secondary to a Polycthemia caused by his hepatocellular carcinoma( which secrete Erythropoietin) . Regardless of the cause however , we just had to recognise that this is a red infarct , and these are due to venous occlusion

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j44n  also with HCC you get loss of ATIII production and predisposes to thrombi +
mmbangura  RCC and not HCC +



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