chemamr
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Which are the pathologies related with Ring enhancing lesions in a contrast CT ?
How do you differentiate them in the CT scan? Which is their distribution or particular features?
Thank you for your replies
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| drkpp
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toxoplasmosis
tumour
abscess
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| chemamr
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How do you differentiate them in the CT scan? Which is their distribution or particular features?
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| intern_doc
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If in AIDS patient, think of
1. Toxo
2. primary cns lymphoma
3. PML
ddx on CT
1. Toxo - mulitple, basal ganlia, spherical
2. Lymphoma - solitary, weakly enhancing, periventricular
3. PML - muliptle, do not produce mass effect
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| chemamr
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excellent point intern_doc !!!  
thank you to both
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