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11/25/06 7:30am (8:30pm Beijing time)

2. Special variants of astrocytomas - Pilocytic astrocytoma (PA) and pilomyxoid astrocytoma

星形细胞瘤的特殊型 - 毛细胞型星形细胞瘤, 儿童的毛粘液样星形细胞瘤

KEY WORDS:

Pilocytic astrocytoma (PA) 毛细胞型星形细胞瘤

Piloid astrocytes

Midline

Juvenile pilocytic astrocytoma 青少年毛细胞型星形细胞瘤

Syrinx
Pilomyxoid astrocytoma in infants and children 儿童的毛粘液样星形细胞瘤
Mural nodule 附壁结节
Anaplastic (malignant) pilocytic astrocytoma 间变(恶)性PA

Uniform

Bipolar and multipolar
Eosinophilic granular bodies (EGB) 嗜酸性小体
Biphasic growth pattern 双相生长方式
Lobular pattern

Rosenthal fibers 罗森塔尔纤维
Leptomeningeal invasion

Mucinous microcysts 粘蛋白的微囊
Calcification 钙化
Degenerative atypia

Infarctive necrosis

GFAP

AlphaB crystallin

Lysosomes

Pleomorphic xanthoastrocytoma (PXA) 多形性黄色瘤型星形细胞瘤
Gangliocytoma

Ganglioglioma

Reactive gliosis

Metaplastic ossification

CSF seeding

Oligodendroglioma

Central neurocytoma

Ependymoma

 

REFERENCES:

1. Pilomyxoid astrocytoma at

http://www.aans.org/education/journal/neurosurgical/June05/18-6a-7.pdf, http://moon.ouhsc.edu/kfung/JTY1/Com05/Com503-1-Diss.htm

http://www.blackwell-synergy.com/doi/pdf/10.1111/j.1440-1789.2006.00641.x

http://www.gfmer.ch/selected_images_v2/detail_list.php?cat1=3&cat3=545&stype=d

2. Pilocytic astrocytoma at http://www.ipathology.cn/forum/forum_display.asp?keyno=1729

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