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Classic case scenario in USMLE where a child or a young adult presents with cerebellar ataxia and other cerebellar signs + headache + CT scan or MRI showing a cystic lesion with "mural nodule" then your diagnosis should be Pilocytic Astrocytoma which is a grade I astrocytoma with favorable prognosis.
It's the most common primary CNS in children followed by craniopharyngioma and ependymoma.
 

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Classic case scenario in USMLE where a child or a young adult presents with cerebellar ataxia and other cerebellar signs + headache + CT scan or MRI showing a cystic lesion with "mural nodule" then your diagnosis should be Pilocytic Astrocytoma which is a grade I astrocytoma with favorable prognosis.
It's the most common primary CNS in children followed by craniopharyngioma and ependymoma.
where does medulloblastoma fit in ?
 

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Isn't the second most common brain tumor in children Medulloblastoma ??
UWORLD even says its the most common malignant brain tumor in children, considering pilocytic astrocytoma to be usually of low grade ...
 

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Isn't the second most common brain tumor in children Medulloblastoma ??
UWORLD even says its the most common malignant brain tumor in children, considering pilocytic astrocytoma to be usually of low grade ...
CNS TUMORS IN CHILDREN
#1 MC is Pylocytic
#2 MC is Medulloblastoma
#3 MC is Ependymoma.

#1 MC malignant is Medulloblastoma
 
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