Abstract
A 71-year-old woman presented with a rare case of malignant fibrous histiocytoma (MFH) associated with recurrent meningothelial meningioma. The neuroimaging findings were consistent with a diagnosis of recurrent meningioma. Surgical removal was performed. Histological and immunohistochemical examinations detected meningothelial and MFH tumor components. The MFH component showed diffuse 3+ staining for epidermal growth factor receptor protein, predominantly located on the cell membrane and to a lesser extent within the cytoplasm. However, a fluorescein isothiocyanate analysis detected no amplification of epidermal growth factor receptor gene.
MeSH terms
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Aged
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Aphasia / etiology
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Biomarkers, Tumor / analysis
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Biomarkers, Tumor / metabolism*
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ErbB Receptors / analysis
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ErbB Receptors / genetics
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ErbB Receptors / metabolism*
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Female
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Fluorescein-5-isothiocyanate
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Gene Amplification
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Hemianopsia / etiology
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Histiocytoma, Malignant Fibrous / metabolism
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Histiocytoma, Malignant Fibrous / pathology*
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Histiocytoma, Malignant Fibrous / surgery
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Humans
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Immunohistochemistry
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Magnetic Resonance Imaging
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Meningeal Neoplasms / pathology*
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Meningeal Neoplasms / surgery
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Meninges / pathology
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Meninges / surgery
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Meningioma / pathology*
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Meningioma / surgery
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Mitotic Index
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Neoplasm Recurrence, Local / metabolism
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Neoplasm Recurrence, Local / pathology
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Neoplasm Recurrence, Local / surgery
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Neoplasms, Second Primary / metabolism
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Neoplasms, Second Primary / pathology*
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Neoplasms, Second Primary / surgery
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Paresis / etiology
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Parietal Lobe / pathology
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Parietal Lobe / surgery
Substances
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Biomarkers, Tumor
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ErbB Receptors
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Fluorescein-5-isothiocyanate