骨硬化

From the commencement of week 3,the cartilage showed the characteristic of later OA morphologically with fibrosis of cartilage,sclerosis of sunchondral bone,amalgamation,opening and fibrosis of marrow cavity.

从第3周开始，正常的软骨细胞基本消失，呈纤维样变，软骨下骨硬化；髓腔融合、开放、纤维化，呈现晚期骨性关节炎的改变。

Infantile malignant osteopetrosis includes various genetic disorders that affect osteoclast development and/or function.

婴儿恶性骨硬化病包括各种影响破骨细胞生长和/或功能的家族遗传性疾病。

Osteoblast and osteoclast activity in a malignant infantile osteopetrosis patient following bone marrow transplantation.

骨髓移植之后的恶性婴儿骨硬化病的成骨细胞和破骨细胞活性。

The authors treated a 6-month-old boy with malignant infantile osteopetrosis using bone marrow transplantation.

作者使用骨髓移植治疗一个 6 个月大的有恶性的婴儿骨硬化病的男孩。

The osteoclast is a member of the monocyte/macrophage family, decreased or increased number and activity of osteoclasts respectively causes osteopetrosis or osteoporosis and other osteolytic diseases.

破骨细胞来源于单核／巨噬细胞谱系，其数量和活性的不足或增加分别会导致骨硬化症和骨质疏松及其他溶骨性疾病。

Pycnodysostosis is an extremely rare genetic osteosclerosis caused by cathepsin K deficiency.

致密成骨不全症是由组织蛋白酶K缺乏所致的一种极为罕见的遗传性骨硬化病。

Spinal cord or bone marrow .Of, relating to, or derived from the bone marrow .

以原纤维细胞及造骨细胞增生为主：原发性骨髓纤维化症、骨硬化症等。。。。

Results:①The center of the homogeneous density soft tissue masses (mean CT value was 50HU) were located in the middle and lower tympanum,and the external auditory canal or the pharyngotympanic tube was involved in the earlier period;②the destructed b...

结果：中耳癌的CT特征：①表现为以中、下鼓室为中心的软组织密度灶，密度均匀，CT值50HU左右，外耳道及咽鼓管早期受累；②呈溶骨性骨质破坏，形态不规则，边缘无骨硬化表现，外耳道后壁破坏较前壁严重；③病灶侵入颞叶，形成肿块，灶周脑水肿不明显；④增强扫描见病灶有中度强化。结论：CT能确定中耳癌的存在及精确显示肿瘤累及范围。

Abstract］ objective to improve the diagnosis of non-ossifying fiboma by analysing its x-ray feature.methods plain x-ray films was performed in all patients.x-ray finding in 8 cases with pathologically-confirmed non-ossifying were analyzed.results the clinical symptom was mild,the lesions occurred usually at the metaphysis of the long bones,the affected bones included femur（n=4）,tibia（n=3）,humerus（n=1）.cortical type was seen in 5 cases,presenting as unilocular or multilacular transparent areas with in the cortex or tightly beneath the cortex,the lesion had a sclerotic margin.which was more obvious at the marrow side.medullary type was seen in 2 cases.the lesion was located at the center of the bone and grew centrally.the tumor was manifested as unilocular or multilocular.tramsparent area with sclerotic border and the bone cortex became thinner with slightly expanding on 11 sides.conclusion plain radiography is the elementally means to detect this disease.based on the typical x-ray signs of non-ossifying fibroma combined with clinical data,correct preoperative diagnosis can be made in most cases.

目的 探讨非骨化性纤维瘤的x线表现以提高诊断水平。方法所有病例均摄有x线平片，分析经病理证实的8例非骨化性纤维瘤。结果临床症状轻，好发于下肢长骨干骺端或骨干，股骨4例，胫骨3例，肱骨1例。皮质型5例，表现为皮质内或紧贴皮质下的单层或多层透亮区，病变向骨内发展进入髓腔，周围有致密硬化带环绕，以髓腔侧明显；髓质型2例，病灶在骨内中央发展，显示为单房或多房透亮区，边缘有硬化，骨皮质菲薄，轻微向周围膨隆。结论 x线为最基本的检查方法，典型病例x线平片结合临床症状即可明确诊断。

Results Early signs of ANFH using CT showed that, in 38 femoral heads 31 cases, there were radiate star shape of high density osteosclerosis of the trabeculae in 13 femoral head.Twenty five femoral heads showed osteosclerosis and trabeculae structure disappearing and vague,incoordinately low ostedensity area and cyst change.There were fracture under the cartilage and light subsid in 5 cases.The cases in stage Ⅰwere given decompression, while the pationtsresul in stageⅡand stageⅢ were given decompression and ostetransplant.

结果：早期ANFH的CT表现：31例38个股骨头，其中13个股骨头骨小梁呈放射状高密度的&星状征&，骨小梁境界清楚、锐利，属Ⅰ期；25个股骨头表现为骨硬化，骨小梁结构消失、模糊不清，骨密度减低及囊性改变，属Ⅱ期；并有5个股骨头在Ⅱ期影像学改变基础上出现软骨下骨折及轻微塌陷，属Ⅲ期。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。