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NBME 20 Answers

nbme20/Block 2/Question#21 (44.4 difficulty score)
A 25-year-old woman comes to the physician 2 ...
Granulomas containing stellate microabscessesπŸ”

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submitted by sympathetikey(1252),
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yotsubato  Everyones choice A is different. +  
sugaplum  they mean- Diffuse neutrophil infiltration +1  
macrohphage95  what does stellate necrotizng granuloma means ? +1  
krisgsxr600  always with the details! losing dumb points :( +1  
futuredoc12345  @sympathetikey Doesn't the biopsy finding vary with the biopsy location: Lymph nodes have stellate granulomas and Bacillary Angiomatosis (skin lesion) has neutrophilic inflammation. What do you think? +  
chextra  @sympathetikey Pathoma chapter 2 says cat scratch disease forms non-caseating granulomas +1  
almondbreeze  @ chextra Same with FA 2019 pg. 218 +2  
almondbreeze  Sketchy micro: Immunocompetent: regional LN in axilla in one arm (like our pt here) Immunocompromised: bacillary angiomatsis is transmitted by cat scratches +  

submitted by sugaplum(323),
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almondbreeze  FA 177 says Kaposi has lymphocytic inflammation whereas Bartonella spp has neutrophilic inflammation. I guess this does not apply when immunocompromised? But doesn't Bartonella usually affect the immunocompromised ppl? +  
almondbreeze  Got it after seeing that she's immunocompetent +  

submitted by neonem(550),
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