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Cytotoxic vs Vasogenic edema (MCQ)


Which of the following imaging modality will best differentiate Cytotoxic from Vasogenic edema ?

a. Diffusion Weighted MRI
b. FLAIR sequence
c. Contrast enhanced CT
d. T2 weighted MRI


ANSWER:

Ans : A
Cytotoxic edema shows Restricted Diffusion but Vasogenic edema shows increased diffusion.





1 comment:

  1. DrAyushGoelApril 12, 2013 at 12:56 PM

    Important points -

    Cytotoxic edema (eg: in Acute infarct)
    1. Intracellular
    2. BBB intact

    Vasogenic edema (eg: surrounding tumors)
    1. Extracellular
    2. BBB disrupted

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