Clear cell ependymoma
Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microsco...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1989 |
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| Umfang: |
6 |
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| Reproduktion: |
Springer Online Journal Archives 1860-2002 |
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| Übergeordnetes Werk: |
in: Virchows Archiv - 1847, 415(1989) vom: Mai, Seite 467-472 |
| Übergeordnetes Werk: |
volume:415 ; year:1989 ; month:05 ; pages:467-472 ; extent:6 |
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NLEJ204984211 |
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| 520 | |a Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microscopy, the tumours had a largely honeycomb pattern and were made up of clear cells. Some of the clear cells showed positive for GFAP. Leu 7, Factor VIII and NSE were negative. Electron microscopy of the areas with clear cells revealed densely packed polyhedral cells with clear cytoplasm. They had well developed intercellular junctions, microvilli and some cilia which confirmed their ependymal derivation. Perivascular pseudorosettes or papillary features were only seen in limited areas, where GFAP was strongly positive in the tumour cell processes. As these tumours mimic oligodendroglioma and cerebellar haemangioblastoma, they are called as “clear cell ependymoma” to obviate such errors in diagnosis. | ||
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| 700 | 1 | |a Yagishita, Saburo |4 oth | |
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(DE-627)NLEJ204984211 DE-627 ger DE-627 rakwb eng Clear cell ependymoma 1989 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microscopy, the tumours had a largely honeycomb pattern and were made up of clear cells. Some of the clear cells showed positive for GFAP. Leu 7, Factor VIII and NSE were negative. Electron microscopy of the areas with clear cells revealed densely packed polyhedral cells with clear cytoplasm. They had well developed intercellular junctions, microvilli and some cilia which confirmed their ependymal derivation. Perivascular pseudorosettes or papillary features were only seen in limited areas, where GFAP was strongly positive in the tumour cell processes. As these tumours mimic oligodendroglioma and cerebellar haemangioblastoma, they are called as “clear cell ependymoma” to obviate such errors in diagnosis. Springer Online Journal Archives 1860-2002 Kawano, Nobuyuki oth Yada, Kenzoh oth Yagishita, Saburo oth in Virchows Archiv 1847 415(1989) vom: Mai, Seite 467-472 (DE-627)NLEJ188987746 (DE-600)1463276-7 1432-2307 nnns volume:415 year:1989 month:05 pages:467-472 extent:6 http://dx.doi.org/10.1007/BF00747748 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 415 1989 5 467-472 6 |
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(DE-627)NLEJ204984211 DE-627 ger DE-627 rakwb eng Clear cell ependymoma 1989 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microscopy, the tumours had a largely honeycomb pattern and were made up of clear cells. Some of the clear cells showed positive for GFAP. Leu 7, Factor VIII and NSE were negative. Electron microscopy of the areas with clear cells revealed densely packed polyhedral cells with clear cytoplasm. They had well developed intercellular junctions, microvilli and some cilia which confirmed their ependymal derivation. Perivascular pseudorosettes or papillary features were only seen in limited areas, where GFAP was strongly positive in the tumour cell processes. As these tumours mimic oligodendroglioma and cerebellar haemangioblastoma, they are called as “clear cell ependymoma” to obviate such errors in diagnosis. Springer Online Journal Archives 1860-2002 Kawano, Nobuyuki oth Yada, Kenzoh oth Yagishita, Saburo oth in Virchows Archiv 1847 415(1989) vom: Mai, Seite 467-472 (DE-627)NLEJ188987746 (DE-600)1463276-7 1432-2307 nnns volume:415 year:1989 month:05 pages:467-472 extent:6 http://dx.doi.org/10.1007/BF00747748 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 415 1989 5 467-472 6 |
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(DE-627)NLEJ204984211 DE-627 ger DE-627 rakwb eng Clear cell ependymoma 1989 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microscopy, the tumours had a largely honeycomb pattern and were made up of clear cells. Some of the clear cells showed positive for GFAP. Leu 7, Factor VIII and NSE were negative. Electron microscopy of the areas with clear cells revealed densely packed polyhedral cells with clear cytoplasm. They had well developed intercellular junctions, microvilli and some cilia which confirmed their ependymal derivation. Perivascular pseudorosettes or papillary features were only seen in limited areas, where GFAP was strongly positive in the tumour cell processes. As these tumours mimic oligodendroglioma and cerebellar haemangioblastoma, they are called as “clear cell ependymoma” to obviate such errors in diagnosis. Springer Online Journal Archives 1860-2002 Kawano, Nobuyuki oth Yada, Kenzoh oth Yagishita, Saburo oth in Virchows Archiv 1847 415(1989) vom: Mai, Seite 467-472 (DE-627)NLEJ188987746 (DE-600)1463276-7 1432-2307 nnns volume:415 year:1989 month:05 pages:467-472 extent:6 http://dx.doi.org/10.1007/BF00747748 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 415 1989 5 467-472 6 |
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(DE-627)NLEJ204984211 DE-627 ger DE-627 rakwb eng Clear cell ependymoma 1989 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microscopy, the tumours had a largely honeycomb pattern and were made up of clear cells. Some of the clear cells showed positive for GFAP. Leu 7, Factor VIII and NSE were negative. Electron microscopy of the areas with clear cells revealed densely packed polyhedral cells with clear cytoplasm. They had well developed intercellular junctions, microvilli and some cilia which confirmed their ependymal derivation. Perivascular pseudorosettes or papillary features were only seen in limited areas, where GFAP was strongly positive in the tumour cell processes. As these tumours mimic oligodendroglioma and cerebellar haemangioblastoma, they are called as “clear cell ependymoma” to obviate such errors in diagnosis. Springer Online Journal Archives 1860-2002 Kawano, Nobuyuki oth Yada, Kenzoh oth Yagishita, Saburo oth in Virchows Archiv 1847 415(1989) vom: Mai, Seite 467-472 (DE-627)NLEJ188987746 (DE-600)1463276-7 1432-2307 nnns volume:415 year:1989 month:05 pages:467-472 extent:6 http://dx.doi.org/10.1007/BF00747748 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 415 1989 5 467-472 6 |
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(DE-627)NLEJ204984211 DE-627 ger DE-627 rakwb eng Clear cell ependymoma 1989 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microscopy, the tumours had a largely honeycomb pattern and were made up of clear cells. Some of the clear cells showed positive for GFAP. Leu 7, Factor VIII and NSE were negative. Electron microscopy of the areas with clear cells revealed densely packed polyhedral cells with clear cytoplasm. They had well developed intercellular junctions, microvilli and some cilia which confirmed their ependymal derivation. Perivascular pseudorosettes or papillary features were only seen in limited areas, where GFAP was strongly positive in the tumour cell processes. As these tumours mimic oligodendroglioma and cerebellar haemangioblastoma, they are called as “clear cell ependymoma” to obviate such errors in diagnosis. Springer Online Journal Archives 1860-2002 Kawano, Nobuyuki oth Yada, Kenzoh oth Yagishita, Saburo oth in Virchows Archiv 1847 415(1989) vom: Mai, Seite 467-472 (DE-627)NLEJ188987746 (DE-600)1463276-7 1432-2307 nnns volume:415 year:1989 month:05 pages:467-472 extent:6 http://dx.doi.org/10.1007/BF00747748 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 415 1989 5 467-472 6 |
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Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microscopy, the tumours had a largely honeycomb pattern and were made up of clear cells. Some of the clear cells showed positive for GFAP. Leu 7, Factor VIII and NSE were negative. Electron microscopy of the areas with clear cells revealed densely packed polyhedral cells with clear cytoplasm. They had well developed intercellular junctions, microvilli and some cilia which confirmed their ependymal derivation. Perivascular pseudorosettes or papillary features were only seen in limited areas, where GFAP was strongly positive in the tumour cell processes. As these tumours mimic oligodendroglioma and cerebellar haemangioblastoma, they are called as “clear cell ependymoma” to obviate such errors in diagnosis. |
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Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microscopy, the tumours had a largely honeycomb pattern and were made up of clear cells. Some of the clear cells showed positive for GFAP. Leu 7, Factor VIII and NSE were negative. Electron microscopy of the areas with clear cells revealed densely packed polyhedral cells with clear cytoplasm. They had well developed intercellular junctions, microvilli and some cilia which confirmed their ependymal derivation. Perivascular pseudorosettes or papillary features were only seen in limited areas, where GFAP was strongly positive in the tumour cell processes. As these tumours mimic oligodendroglioma and cerebellar haemangioblastoma, they are called as “clear cell ependymoma” to obviate such errors in diagnosis. |
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Summary Four cystic brain tumours, one from the frontal lobe, one in the third ventricle and two in the cerebellum, were studied histologically including immunostaining and electron microscopy. Anatomically, all the tumours were located within or adjacent to the ventricular system. By light microscopy, the tumours had a largely honeycomb pattern and were made up of clear cells. Some of the clear cells showed positive for GFAP. Leu 7, Factor VIII and NSE were negative. Electron microscopy of the areas with clear cells revealed densely packed polyhedral cells with clear cytoplasm. They had well developed intercellular junctions, microvilli and some cilia which confirmed their ependymal derivation. Perivascular pseudorosettes or papillary features were only seen in limited areas, where GFAP was strongly positive in the tumour cell processes. As these tumours mimic oligodendroglioma and cerebellar haemangioblastoma, they are called as “clear cell ependymoma” to obviate such errors in diagnosis. |
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