to snoo-finity ... and beyond!
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crescent sign is a finding on radiographs that is associated with avascular necrosis, NOT aneurysms !!!
what you're seeing is Calcification of wall of the aortic aneurysm
the question is asking about "adequate arterial supply"
i've never heard of " 6. Small Blue Cells" cancer / tumor / carcinoma ....
might want to look at fa pg 665
I'm going to go take a big bicarbonate poop now.
i would suggest that you look into it a bit more. Why ?
Had an nbme question (which confused the shit out of me) cuz, Bluemic Pt. who was abusing Laxatives (had the up & down arrows) and this is what it gave :
Laxative Abuse — Metabolic Alkalosis :
↓K+ ↑Cl- ↑pH ↓HCO3-
so one of the points of distinction IS the increase in Cl- with laxative abuse (vs. vomiting, which was a knee-jerk reaction when i hear bulimia)