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NBME 18 Answers

nbme18/Block 4/Question#31 (reveal difficulty score)
57 yo man with alcoholism
Liquefaction ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: 36

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 +5  upvote downvote
submitted by โˆ—mousie(272)

Read pathoma...... chapter 1 p 5 on "cell death" Liquefactive necrosis occurs in brain infarct ( proteolytic enzymes from microglial cells liquify the brain) & Abscess (proteolytic enzymes from neutrophils liquify tissue [in this case pulmonary parenchyma]) & pancreatitis (same thing)

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mumenrider4ever  Also talked about under liquefactive necrosis on pg. 209 FA 2020 +3
lokotriene  UW: 302 & 9989 are both great for representing/explaining this. +
tekkenman101  pancreatitis is fat saponification not liquefactive according to FA. +
chj7  @tekkenman101 Inflammation of the pancreas itself is liquefactive due to pancreatic enzymes digesting everything; inflammation of the fat surrounding the pancreas leads to fat necrosis. (Dr. Sattar distinguishes this when he talks about the different types of necrosis) +1

 -7  upvote downvote
submitted by โˆ—azibird(278)

Nocardia is the only non-tuberculoid bacteria listed in FA that leads to caseous necrosis.

FA2020 p209

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