神经科常见影像征象总结
脑膜尾症
左侧腰疼是什么原因
【关于"脑膜尾征".
一、
radiology.rsnajnls/cgi/content/full/233/1/56
www.dxy/bbs/actions/archive/post/1945439_1.html
An early clinical description of meningioma was reported in 1614 (5). Unfortunately, at that t
ime the diagnosis could be made only after death. In 1902, George E. Pfahler, MD, then a resident physician, was able to offer a radiologic diagnosis on a living patient. Pfahler described the "tumor shadow" of a meningioma on conventional radiographs (5). In 1989, Wilms et al (1) described dural tails that were associated with meningiomas on MR images.
1614年即有关于脑膜瘤的临表报道.
1902年,由George E. Pfahler, MD,提供了影象方面的诊断.大声说不作文患者当时在世.
1989年,由Wilms等人提出,MR上硬膜尾与脑膜瘤的相关性.
In 1990, Goldsher et al (2) published a report on 30 meningiomas, of which 60% had tails. The authors devid radiologic criteria to reliably establish the prence or abnce of dural tails. Three criteria were adopted: (a) The tail should be identified on two successive ctions through the tumor, (b) the tail should taper smoothly away from the tumor, and (c) the tail must have an enhancement greater than that of the tumor itlf.
1990年,Goldsher等人提出脑膜尾的影象诊断标准icreo,即:
木兰诗互文1,至少连续出现于两个层面;
2,尾巴(自肿瘤出发向外)逐渐变细;
3,尾巴增强较肿瘤光亮.
No clear answer can be discerned from the literature as to why some tumors cau a dural tail and others do not. In the particular ca of meningiomas, some investigators have noted tumor invasion, and others relate the tail to hypervascular reaction. The two common explanations (namely, aggressive infiltration and inflammatory reaction) are also noted for most of the nonmeningioma tumors.
脑膜尾出现的病理生理学解释:
1,肿瘤侵入性渗入;
2,肿瘤富血管并导致局部炎症反应.
To date, dural tails have been documented adjacent to chloroma, primary central nervous system lymphoma, sarcoidosis, vestibular schwannoma, metastatic tumor, syphilitic gum
ma, and an aggressive papillary middle ear tumor (7–10).
可以出现脑膜尾的其他肿瘤:工匠精神的核心
PCNSL、转移瘤、神经鞘瘤、梅毒性树胶肿、绿色瘤、肉瘤样病、“侵入性乳头状中耳瘤”.
Whatever the explanation, the dural tail sign remains a helpful sign at least suggestive of meningioma.
然而，脑膜尾仍然是脑膜瘤诊断的提示征象.挂靠协议
事业单位产假二、
Eur J Radiol. 2008 Feb 20.Pathologic significance of the "dural tail sign".
火龙果图片CONCLUSION: In our study MRI findings failed to predict tumoural invasion of the dural tail in histologic samples and becau of frequent prence of tumour nests in it, the dura matter should be rected as widely as possible.
MR研究不能通过出现硬膜尾而预测组织学样本中硬膜的肿瘤侵犯,鉴于肿瘤在硬膜物质中出现率较高，应尽可能广的切除硬膜。】
