Q. Which of the following stage of neurocysticercosis shows maximum edema around the lesion on MRI ?
a. vesicular
b. colloidal vesicular
c. granular nodular
d. nodular calcified
ANSWER:
Answer : B - colloidal vesicular,
Colloidal vesicular stage - is the most symptomatic stage and shows maximum edema.
No edema/post contrast enhancement occurs in Vesicular and Calcified stages (though some authors say that minimal enhancement may be seen in vesicular stage)
Cyst with dot sign can be seen in both Vesicular and Colloidal vesicular stages
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