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Evolution to malignancy in a recurrent meningioma: morphological and cytogenetic findings
被引:0
|作者:
Cerda-Nicolas, N
Lopez-Gines, C
Barcia-Salorio, J
Llombart-Bosch, A
机构:
[1] Univ Valencia, Dept Pathol, E-46003 Valencia, Spain
[2] Univ Valencia, Dept Surg Neurosurg, E-46003 Valencia, Spain
关键词:
recurrent meningioma;
PCNA-LI;
micronecrosis;
karyotype;
D O I:
暂无
中图分类号:
R74 [神经病学与精神病学];
学科分类号:
摘要:
The original tumor and 4 relapses of a recurrent meningioma were studied. We analyzed and compared these recurrences by histopathology, PCNA labelling index (PCNA-LI), nuclear count, and cytogenetical findings. The most important changes in the evolution to aggressivity were: recurrences at progressively shorter intervals, increases in the PCNA-LI, and micronecrosis; histological changes such as sheeting and increase of the extracellular matrix and a gradual transformation to a clonally complex karyotype.
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页码:210 / 215
页数:6
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