Results 201 to 210 of about 75,763 (246)
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Acta Neuropathologica, 1996
A case of pigmented pilocytic astrocytoma (WHO grade I) incidentally found in a right temporopolar lobectomy specimen is reported. The patient, a 41-year-old woman, underwent surgery because of long-standing complex partial epilepsy of presumed post-traumatic origin. Using immunohistochemistry and electron microscopy, the tumor was shown to be composed
I, Vajtai +3 more
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A case of pigmented pilocytic astrocytoma (WHO grade I) incidentally found in a right temporopolar lobectomy specimen is reported. The patient, a 41-year-old woman, underwent surgery because of long-standing complex partial epilepsy of presumed post-traumatic origin. Using immunohistochemistry and electron microscopy, the tumor was shown to be composed
I, Vajtai +3 more
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American Journal of Ophthalmology, 1979
A 41-year-old man had a 6 x 6 x 5-disk diameter amelanotic tumor in the posterior fundus. The clinical and fluorescein angiographic appearance suggested a benign retinal vascular tumor, although amelanotic choroidal melanoma and retinoblastoma were diagnostic possibilities.
R C, Ramsay +4 more
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A 41-year-old man had a 6 x 6 x 5-disk diameter amelanotic tumor in the posterior fundus. The clinical and fluorescein angiographic appearance suggested a benign retinal vascular tumor, although amelanotic choroidal melanoma and retinoblastoma were diagnostic possibilities.
R C, Ramsay +4 more
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Arkhiv patologii, 2018
Gemistocytic astrocytomas (GA) are a variant of diffuse astrocytomas GII (WHO, 2016). Like all diffuse astrocytomas, GA recur with time, which is often accompanied by malignant degeneretion into the anaplastic astrocytoma GIII or to the secondary glioblastoma GIV.
D E, Matsko +6 more
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Gemistocytic astrocytomas (GA) are a variant of diffuse astrocytomas GII (WHO, 2016). Like all diffuse astrocytomas, GA recur with time, which is often accompanied by malignant degeneretion into the anaplastic astrocytoma GIII or to the secondary glioblastoma GIV.
D E, Matsko +6 more
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Neurosurgery Clinics of North America, 1994
Brain tumor grading has always been tied to predicting prognosis. Originally, the grading system had four grades, then three-grade systems became popular; now, four grades are in vogue. There is less evidence than might be supposed for the validity of these systems, however.
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Brain tumor grading has always been tied to predicting prognosis. Originally, the grading system had four grades, then three-grade systems became popular; now, four grades are in vogue. There is less evidence than might be supposed for the validity of these systems, however.
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Infiltrative Astrocytomas (Diffuse Astrocytoma, Anaplastic Astrocytoma, Glioblastoma)
2009Infiltrative astrocytomas represent a diverse group of glial tumors of variable degree of malignancy that share in common the qualities of astrocytic differentiation and an inherent ability to diffusely invade central nervous system (CNS) parenchyma.
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Pilocytic Astrocytoma and Pilomyxoid Astrocytoma
2009Pilocytic astrocytoma (PA) These are circumscribed, slow-growing, and often cystic astrocytic neoplasm, typically with a biphasic compact and loose architecture by histology and corresponding to WHO grade I. Though most are sporadic, there is a well-established association of pilocytic astrocytoma and neurofibromatosis Type 1 with germline ...
Christine Fuller, Sonia Narendra
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Journal of Neuropathology & Experimental Neurology, 1951
N, RINGERTZ, H, NORDENSTAM
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N, RINGERTZ, H, NORDENSTAM
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