骨化

Disc cell mainly consist of chondrocytes, PTHrP-Ihh negative feedback mechanism can modulate differentiation and maturation of chondrcytes during endocartilage ossification in epiphysis of long shaft bone, but its effect on vertebral development is still unknown.

椎间盘细胞主要由软骨细胞样细胞组成，PTHrP和Ihh形成的负反馈机制在长管骨软骨内骨化过程中对软骨细胞分化和成熟具有调节作用，在椎体和椎间盘的发育过程中的作用仍未阐明。

On enhanced MRI the characteristics of epiphyseal and physeal cartilage and 2nd ossification center in femoral heads were evaluated and lack of enhancement in epiphysis indicates ischemia. The comparison between MRI appearances and histological findings was made.

分析股骨头骨骺软骨、生长板软骨和二次骨化中心的增强MR表现特征，进行MR表现与组织学发现的比较对照研究。

Roentgenogram reveals irregular ossification throughout exostosis of distal femur.

X 线片显示股骨远端外生骨处有不规则的骨化； B T1-加权冠状位图像，显示病变内

Recurrence is frequent and may present with more extensive involvement of the bone, more expansile and with sclerotic and periosteal reaction.

典型骨瘤在常规摄影呈现偏离心、边缘小叶状、轻微扩张和毛玻璃样病灶，同时，没有骨化及骨膜反应。

Omputed tomography revealed a round, expansile lesion arising from the hard palate with evidence of ossification.

T检查发现，硬腭长处一个圆形膨胀性病变，并有骨化证明。

Typical tumor appears as an eccentric, lobulated margin, slight expansile, ground-glass lesion without reactive sclerosis or periosteal reaction, on plain films.

民国72年至76年期间，本科共收集7例长骨骨化性纤维瘤病例，除1例出现於肱骨，其余都是在胫骨。

Methods: 24 cases of non-ossifying fibroma from 1993～1999 have been reported.

总结1993～1999年收治的非骨化性纤维瘤24例。

Objective To investigate CT and MRI findings of ossifying fibroma of craniofacial region in order to improve the diagnostic accuracy.

目的 探讨颅面部骨化性纤维瘤的CT和MRI表现，提高其诊断准确性。

Methods］Reviewly analysis clinical and imaging materials of 11 patients ossifying fibroma of the long bone.

方法］回顾分析11例经手术病理证实的长骨骨化性纤维瘤临床和影像资料。

Methods CT and MRT data of 15 cases with ossifying fibroma of craniofacial region confirmed pathologically were analyzed retrospectively.

回顾性分析经手术病理证实的15例颅面部骨化性纤维瘤患者的CT和MRI影像学资料。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。