Are juvenile pilocytic astrocytomas benign tumors? A cytogenetic study in 24 cases

被引:36
作者
Zattara-Cannoni, H
Gambarelli, D
Lena, G
Dufour, H
Choux, M
Grisoli, F
Vagner-Capodano, AM
机构
[1] CHU Timone, Cytogenet Oncol Lab, F-13385 Marseille 05, France
[2] CHU Timone, Pathol & Neuropathol Lab, F-13385 Marseille, France
[3] CHU Timone, Dept Neurosurg, F-13385 Marseille 05, France
关键词
D O I
10.1016/S0165-4608(97)00455-X
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
We performed a cytogenetic study on 24 pilocytic astrocytomas: 23 in children and 1 in a young adult. We observed 12 normal karyotypes. In 12 karyotypes with structural and/or numerical abnormalities, chromosomes 7, 8, and 11 were most frequently involved. One case recurred and presented chromosomal abnormalities (hyperdiploidy) in the first tumor and additional structural abnormalities in the second tumor. We believe that chromosomal abnormalities in pilocytic astrocytomas are frequent and indicate tumoral progression. (C) Elsevier Science Inc., 1998.
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页码:157 / 160
页数:4
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