ABPath Neuropathology Practice Questions - ABPath Neuropathology Subspecialty Certification Examination Exam

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A 55-year-old man has a left frontal cortical tumor with calcifications on CT. Histology shows monotonous round cells with perinuclear halos ('fried egg'), chicken-wire capillaries, and microcalcifications. Molecular testing shows IDH1 mutation and 1p/19q codeletion. Which diagnosis is correct?

Astrocytoma, IDH-mutant Oligodendroglioma, IDH-mutant and 1p/19q-codeleted Glioblastoma, IDH-wildtype Central neurocytoma

Correct Answer:

Oligodendroglioma, IDH-mutant and 1p/19q-codeleted

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