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Histopathological and immunohistochemical profile in anaplastic gangliogliomas
Romero-Rojas, Alfredo E; Chinchilla-Olaya, Sandra I; Restrepo-Escobar, Ligia I; Diaz-Perez, Julio A; Amaro, Deirdre; Lozano-Castillo, Alfonso.
Affiliation
  • Romero-Rojas, Alfredo E; National Cancer Institute. Division of Neuropathology. Bogotá. Colombia
  • Chinchilla-Olaya, Sandra I; National Cancer Institute. Division of Neuropathology. Bogotá. Colombia
  • Restrepo-Escobar, Ligia I; National Cancer Institute. Division of Neuropathology. Bogotá. Colombia
  • Diaz-Perez, Julio A; University of California. Department of Pathology. CA. USA
  • Amaro, Deirdre; University of California. Department of Pathology. CA. USA
  • Lozano-Castillo, Alfonso; National University of Colombia. Division of Neuroradiology. Bogotá. Colombia
Neurocir. - Soc. Luso-Esp. Neurocir ; 24(6): 237-243, nov.-dic. 2013. ilus, tab
Article in English | IBECS | ID: ibc-127858
Responsible library: ES1.1
Localization: BNCS
RESUMEN
ANTECEDENTES El ganglioglioma anaplásico (GA) es la contraparte de alto grado del ganglioglioma, un raro tumor compuesto por una mezcla de células neuronales/ganglionares y gliales. MATERIALES Y

MÉTODOS:

Se describe la histopatología y la inmunohistoquímica en 7casos de GA.

RESULTADOS:

Los casos de GA correspondieron al 2,5% de los tumores del SNC evaluados en nuestra institución. La edad media de presentación fue 25,7 años, con predominio del género masculino. La presentación más frecuente fue como convulsiones generalizadas tónico-clónicas (3/7casos), en correlación con una frecuente localización cortical/subcortical (6/7casos). Histopatológicamente todos los casos mostraron características de alto grado en las células gliales (GFAPpositivas) y ganglio/neuronales (sinaptofisina, PG-9.5, neurofilamentos, NSE y CD56-positivo), además de celularidad moderada, figuras mitóticas frecuentes y Ki-67>5%. Todos los pacientes mostraron baja supervivencia.

CONCLUSIÓN:

Se describe el perfil histopatológico e inmunohistoquímico en GA, el cual es constante y posee utilidad para el diagnóstico precoz de estos tumores agresivos
ABSTRACT

BACKGROUND:

The anaplastic ganglioglioma (AG) is the high-grade counterpart of ganglioglioma, a rare mixed tumor composed of neuronal/ganglion and glial cells. MATERIALS AND

METHODS:

We describe the histopathology and immunohistochemistry in 7 cases of AG and correlate them with the clinical and radiological features.

RESULTS:

Our AG patients correspond to 2.5% of the central nervous system tumor patients evaluated in our institution. The mean age at presentation was 25.7 years, with a malepredominance. The most common clinical presentation was generalized tonic-clonic seizures (3/7 cases), in correlation with frequent cortical/subcortical location (6/7 cases).Histopathologically, all our cases showed high-grade features in glial (glial fibrillary acid protein-positive) and neuron-ganglion cells (synaptophysin, PGP-9.5, neurofilament, NSE and CD56-positive), as well as moderate cellularity, frequent mitotic figures and a Ki-67labeling index >5%. All our patients had poor survival.

CONCLUSION:

We found that a typical histopathological and immunohistochemical profile is constant and can be useful in early diagnosis of these aggressive neoplasms
Subject(s)
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Collection: National databases / Spain Database: IBECS Main subject: Central Nervous System Neoplasms / Lymphoma, Primary Cutaneous Anaplastic Large Cell Type of study: Screening study Limits: Humans Language: English Journal: Neurocir. - Soc. Luso-Esp. Neurocir Year: 2013 Document type: Article Institution/Affiliation country: National Cancer Institute/Colombia / National University of Colombia/Colombia / University of California/USA
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Collection: National databases / Spain Database: IBECS Main subject: Central Nervous System Neoplasms / Lymphoma, Primary Cutaneous Anaplastic Large Cell Type of study: Screening study Limits: Humans Language: English Journal: Neurocir. - Soc. Luso-Esp. Neurocir Year: 2013 Document type: Article Institution/Affiliation country: National Cancer Institute/Colombia / National University of Colombia/Colombia / University of California/USA
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