期刊
JOURNAL OF CLINICAL NEUROSCIENCE
卷 10, 期 3, 页码 320-324出版社
CHURCHILL LIVINGSTONE
DOI: 10.1016/S0967-5868(03)00013-4
关键词
vascular endothelial growth factor; pituitary adenoma; cystic component; haemorrhage
Vascular endothelial growth factor (VEGF) is known to be a mediator of angiogenesis and vascular permeability. A cystic component and haemorrhage are often found in pituitary adenomas. We assessed the VEGF expression based on immunohistochemical examinations in 48 pituitary adenomas. All the adenomas showed some VEGF immunoreactivity mainly in the cytoplasm of tumour cells. Of the 48 adenoma-cases, 16 cases had a strong VEGF immunoreactivity, 26 cases had a moderate one, and 6 cases had a weak one. On the MR images, a cystic component was found in 16 cases (33.3%), and a haemorrhage was found in 18 cases (37.5%). The VEGF immunoreactivity had a significant relationship with the cystic component but not the haemorrhage, size, recurrence, or HE classification. These findings suggest that VEGF plays any potential role in the pathogenesis of cystic formation in pituitary adenomas. (C) 2003 Elsevier Science Ltd. All rights reserved.
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