Abstract
A case of pilocytic astrocytoma of neurohypophysis is presented. The clinical, pathological and MRI features of a rare tumor of the neurohypophysis are described. A 5-year-old girl presented with a 3 month history of lethargy, imbalance and visual disturbances. A MRI revealed a large suprasellar mass. Histopathological examination demonstrated a pilocytic astrocytoma. Its astrocytic nature was confirmed by positive immunostaining for GFAP and the findings of an electron microscopy.
MeSH terms
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Astrocytoma / diagnostic imaging
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Astrocytoma / pathology*
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Astrocytoma / physiopathology
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Astrocytoma / ultrastructure
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Child, Preschool
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Female
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Glial Fibrillary Acidic Protein / metabolism
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Humans
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Immunohistochemistry
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Magnetic Resonance Imaging
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Microscopy, Electron
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Pituitary Gland, Posterior / metabolism
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Pituitary Gland, Posterior / pathology
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Pituitary Gland, Posterior / ultrastructure
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Pituitary Neoplasms / diagnostic imaging
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Pituitary Neoplasms / pathology*
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Pituitary Neoplasms / physiopathology
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Radiography
Substances
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Glial Fibrillary Acidic Protein