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In the central nervous system, the presence of pigment in astrocytic tumors is rare. Only nine cases were reported in the English literature: one ganglioglioma, one pilocytic astrocytoma, and seven cases of pleomorphic xanthoastrocytoma (PXA). Though squash cytology is a common and useful tool for intraoperative diagnosis during brain tumor surgeries, the cytologic findings of pigmented PXA have not...
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