DrVirgo
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25.
A 32-year-old man with AIDS has a 6-week history of progressive weakness of his right hand, expressive aphasia, and a mild headache. A CT scan of the head with contrast is shown. Which of the following is the most likely causal organism?
A) Cryptococcus neoformans
B) Cytomegalovirus
C) Pneumocystis carinii
D) Toxoplasma gondii
E) Treponema pallidum
Attached Files:
AIDSBrain.JPG (11 KB, 30 downloads)
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| DrVirgo
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A? MC CNS infection in AIDS
or D? Ring enhancing.
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| yasmeen
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D SPACE OCCUPYING LESION
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| r_albayunen
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d ill go with ring enhancing lesion toxo
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| robin082006
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D
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| DrVirgo
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 Thanks again you all.
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| DrVirgo
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Any idea what cryptococcal meningitis would look like in the brain MRI?
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| 26malik
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D. toxoplasma gondii
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| pocas
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D MASS EFECT
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| Diego Casali
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I agree with those who picked D.
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| DrVirgo
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Ok, so D it is! 
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| cool_guyp4u
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It is D
Differential Diagnosis for ring-enhancing lesions:
MAGICAL DR (Infact only Magic can cure most of these lesions!)
M - Metastasis, MS
A - Abscess (also cerebritis)
G - Glioblastoma, Granuloma
I - Infarct (esp. Basal ganglia)
C - Contusion (rare)
A - AIDS (Toxo, etc.)
L - Lymphoma (in aids)
D - Demyelination (active)
R - Resolving hematoma, Radiation change (necrosis)
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