11 year old girl presented with temporal mass. Diagnose the histopathological images.

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Monomorphic appearance of tumor cells with round to oval nuclei , minimal atypia, scant cytoplasm No chicken wire pattern vasculature and calcifications noted No True Rosettes seen No atypia/ mitosis /necrosis seen Possiblities -Neurocytoma( age group favouring) - Oligodendroglioma - Primary CNS Lymphoma ( immunocompromised) - Metastasis

Final diagnosis is Neurocytoma an intraventricular tumor. Thanku Sir for your reply
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If ventricular then central neurocytoma is likely. Oligodendroglioma is the other possibility.

Its lateral ventricles
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Leukaemic infiltration has to be ruled out

Its intraventricular tumor, Most commonly present in lateral ventricles .
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Oligodendroglioma

Its intraventricular tumor.
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Lymphoma

Its intraventricular tumor thanku
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The eosinophilic background was primarily granular in nature, although in some areas it appeared more fibrillar. There were no mitoses or necrosis. could be primary CNS neoplasm

Neurocytoma is the daignosis
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A cellular neoplasm containing a fairly monomorphic population of cells with round nuclei. There were no nucleoli and only rare mitotic figures seen.

Its Neurocytoma
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Cells were more pleomorphic and somewhere clumped together, but there were no true ganglion cells.

Its Neurocytoma
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Small round cell tumor...IHC for categorisation

Location is cortical or ventricular sir?

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