Extraventricular Neurocytoma: Morphological and Immunohistochemical Considerations on Differential Diagnosis

Neurocytoma is an unusual neuronal tumor especially affecting young people. It commonly arises in the ventricles and has a benign outcome. Herein, we report on a rare case of extraventricular neurocytomas (right parietal lobe) in a young girl admitted to hospital for a cranial trauma subsequent to a...

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Bibliographic Details
Published in:Pathology, research and practice research and practice, 2002, Vol.198 (9), p.627-633
Main Authors: Buccoliero, Anna Maria, Caldarella, Adele, Ammannati, Franco, Mennonna, Pasquale, Taddei, Antonio, Taddei, Gian Luigi
Format: Article
Language:English
Subjects:
Adult
Brain Neoplasms - complications
Brain Neoplasms - diagnostic imaging
Brain Neoplasms - metabolism
Brain Neoplasms - pathology
Brain Neoplasms - surgery
Brain tumors
Clear cells
Diagnosis, Differential
Ependymoma - pathology
Extraventricular
Female
Humans
Immunohistochemistry
Magnetic Resonance Imaging
Neurocytoma
Neurocytoma - complications
Neurocytoma - diagnostic imaging
Neurocytoma - metabolism
Neurocytoma - pathology
Neurocytoma - surgery
Oligodendroglioma - pathology
Parietal Lobe - pathology
Radiography
Seizures - etiology
Synaptophysin
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Summary:Neurocytoma is an unusual neuronal tumor especially affecting young people. It commonly arises in the ventricles and has a benign outcome. Herein, we report on a rare case of extraventricular neurocytomas (right parietal lobe) in a young girl admitted to hospital for a cranial trauma subsequent to a seizure. The tumor, radiologically well-circumscribed, cystic and enhancing, was surgically excised. The patient, who received no post surgical treatment, is alive and well after 18 months of follow-up. Pathological examination showed a well-differentiated lesion composed of uniform, round cells with perinuclear halos in a neuropil background and immunohistochemically positive for neuronal markers (synaptophysin, neuron-specific enolase, neurofilaments). The authors emphasize the role of the morphological and immunohistochemical evaluations to recognize this rare tumor.
ISSN:0344-0338
1618-0631
DOI:10.1078/0344-0338-00312