CNS tumor types, neurodegenerative disease histology, and classic stroke and demyelination patterns, one finding per card. Original cards testing the underlying concepts.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- Which primary CNS tumor is the most common malignant brain tumor in adults?
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Glioblastoma (GBM)- What histologic hallmark is seen in glioblastoma?
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Pseudopalisading necrosis (tumor cells lined up around necrotic areas)- What gross growth pattern lets glioblastoma cross the corpus callosum?
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It grows across the midline, forming a butterfly glioma- From what cell type does a meningioma arise?
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Arachnoid cap cells- What concentric, calcified structures are seen histologically in meningioma?
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Psammoma bodies- Is a meningioma an intra-axial or extra-axial tumor?
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Extra-axial, attached to the dura- What immunohistochemical marker is positive in schwannoma?
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S-100- Bilateral vestibular schwannomas are characteristic of which genetic syndrome?
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Neurofibromatosis type 2- What classic histologic appearance describes oligodendroglioma cells?
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Fried egg appearance (round nuclei with clear halos)- What chromosomal deletion is characteristic of oligodendroglioma?
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Codeletion of chromosome arms 1p and 19q- What eosinophilic fiber is seen histologically in pilocytic astrocytoma?
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Rosenthal fibers- What is the most common brain tumor of childhood?
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Pilocytic astrocytoma- What rosette pattern is characteristic of medulloblastoma?
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Homer Wright rosettes- What histologic pattern is characteristic of ependymoma?
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Perivascular pseudorosettes- From what embryologic structure does a craniopharyngioma arise?
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Remnants of Rathke pouch
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