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1
参考中文标题:
影像学特征低品位中央骨肉瘤长骨和骨盆。
作者单位:
Department of Radiology, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA.
PMID及链接:
15175837 http://www.syyxw.com/Archive/Detail/15175837
摘 要:
PURPOSE: To determine the age and gender distribution and imaging features of low-grade central osteosarcoma (LGCOS) of the long bones and pelvis and to discuss our findings in the context of lesions for which LGCOS has been mistaken. MATERIALS AND METHODS: We reviewed 99 cases of LGCOS collected between 1919 and 2002 from our institution and pathology consultation files. Adequate imaging was available in 70 cases (36 radiographs only, 17 radiographs/CT, 12 radiographs/MRI, 2 radiographs/CT/MRI, 2 CT only, 1 MRI only, 5 bone scans). RESULTS: Patient average age was 30.1+/-14.2 years, with a slight female predominance. The femur and tibia were the most common long bones involved (29 and 20 each) with the majority of these tumors arising around the knee, followed by the fibula, radius, humerus and ulna (four, three, two and one case each). Flat bones were involved in six cases (three pelvis, one rib, two scapulae). Short tubular bones were involved in five cases (two metatarsal, two phalanges, one clavicle). The lesion extended to the end of the affected long bone in 22 of 59 cases. Lesions were large at presentation (mean 7.9+/-4.6 cm, range 2-24). Four radiographic patterns were identified: lytic with varying amounts of thick and coarse trabeculation ( n=22), predominantly lytic with few thin, incomplete trabecula ( n=21), densely sclerotic ( n=17) and mixed lytic and sclerotic ( n=10). Lesions were benign-appearing overall with focally aggressive features. CT or MRI demonstrated cortical breech or extension into the soft tissues in all cases. CONCLUSIONS: LGCOS has a variable appearance on radiographs. A frequent pattern is a slow-growing large intracompartmental fibro-osseous lesion with varying amounts of septal ossification associated with focal areas of aggression. A homogeneously sclerotic pattern was also noted. Imaging with CT or MRI was helpful in every instance in our series in identifying areas of soft tissue extension or cortical disruption suggestive of a low-grade malignancy.
参考中文摘要:
目的:确定年龄和性别分布和影像学特征低品位中央骨肉瘤( LGCOS )的长骨和骨盆,并讨论我们的调查范围内的病变而LGCOS已经错了。材料与方法:我们回顾99案件LGCOS收集1919年和2002年之间从我们的机构和病理咨询文件。充足的影像可在70例( 36只X线, 17线/ CT显像, 12片/ MRI检查, 2片/的CT / MRI检查, 2只的CT , MRI检查1只, 5骨骼扫描) 。结果:患者平均年龄30.1 + / -14.2岁,其中女性占主导地位略有。在股骨和胫骨是最常见的长骨参与( 29和20每个)与大多数这些肿瘤产生在膝关节周围,其次是腓骨,半径,肱骨和尺骨(四,三,二,每一个案件) 。扁骨参与了6起案件( 3骨盆,一个肋骨,两个肩胛) 。短管状骨都参与了5起案件( 2跖骨,两个指骨,一个锁骨) 。病变延伸到年底,受影响的长骨中有22个59例。病灶在介绍大(平均7.9 + / -4.6公分,射程2月24日) 。四个影像模式发现:溶解的不同数量的厚,粗trabeculation ( 22例) ,主要是溶解很少薄的,不完整的小梁( 21例) ,人口稠密硬化( 17例)和混合裂解和硬化(例10 ) 。良性病灶,整体与局部出现积极的功能。 CT或MRI显示皮质臀位或扩展到软组织中的所有情况。结论: LGCOS有一个变量出现在X光片。一个常见的模式是一个缓慢增长的大intracompartmental纤维骨性病变的不同数量的间隔骨化与重点领域的侵略。阿均匀僵化模式还指出。成像与CT或MRI有助于在我们的每一个实例确定的一系列领域的软组织延长或皮质中断暗示低恶性。
中文提供:
2
参考中文标题:
移骨髓水肿的膝盖。
作者单位:
Department of Radiology, North Shore University Hospital, 300 Community Drive, Manhasset, NY 11030, USA.
PMID及链接:
15138729 http://www.syyxw.com/Archive/Detail/15138729
摘 要:
OBJECTIVE: The purpose of our study is to describe shifting bone marrow edema in the knee as the MR imaging feature of intra-articular regional migratory osteoporosis of the knee. PATIENTS AND METHODS: Five men, aged 45-73 years, were referred by orthopedic surgeons for MR imaging evaluation of knee pain, which had been present for 2 weeks to 6 months. One patient had a prior history of blunt trauma. None had risk factors for osteonecrosis. Four patients had two MR examinations and the patient with prior blunt trauma had four. Plain radiographs were obtained in all patients. RESULTS: In all cases, a large area of marrow edema initially involved a femoral condyle, with migration of the bone marrow edema to the other femoral condyle, tibia, and/or patella occurring over a 2- to 4-month period. Adjacent soft tissue edema was present in all five patients, while none had a joint effusion. Radiographs of two patients showed generalized osteopenia. CONCLUSION: In the absence of acute trauma or clinical suspicion of infection, a large area of bone marrow edema without a zone of demarcation may represent intra-articular regional migratory osteoporosis. Demonstration of shifting bone marrow edema on follow-up examinations suggests this diagnosis.
参考中文摘要:
目的:本研究是描述转移骨髓水肿在膝关节的磁共振成像特点关节内区域洄游膝关节骨质疏松症。病人与方法:五名男子,年龄45-73岁,是指由整形外科医生的磁共振成像评价膝关节疼痛,这是目前的2个星期至6个月。 1例患者进行了事先的历史钝性外伤。没有人骨坏死的危险因素。 4例有两个磁共振检查和患者事先钝性外伤有四个。 X线获得了所有患者。结果:在所有情况下,大面积的骨髓水肿最初涉及股骨髁,与移民的骨髓水肿的其他股骨髁,胫骨和/或髌骨发生在2 - 4个月期间。邻近的软组织水肿,目前在所有5个病人,而没有了关节积水。 X光片显示,患者的两个广义骨质疏松。结论:在没有急性创伤或临床上怀疑感染,大面积的骨髓水肿未经区划分可能代表关节内区域洄游骨质疏松症。示范转向骨髓水肿的后续检查表明这一诊断。
中文提供:
3
参考中文标题:
超声损伤尺韧带肘关节-初步经验。
作者单位:
Department of Radiology, North Shore University Hospital, 825 Northern Boulevard, Great Neck, NY 11021, USA. TMiller@NSHS.edu
PMID及链接:
15133640 http://www.syyxw.com/Archive/Detail/15133640
摘 要:
OBJECTIVE: The purpose of this study is to describe the sonographic appearance of injuries of the ulnar collateral ligament (UCL) of the elbow. DESIGN AND PATIENTS: Eight non-professional male baseball pitchers, ages 13-35 years, with medial elbow pain and clinical suspicion of ulnar collateral ligament injury, were referred for imaging. All eight underwent sonography of the affected and contralateral asymptomatic elbow, and six also underwent MR imaging. Neither valgus stress nor power Doppler was used during the sonographic examinations. Time from onset of symptoms to imaging was 1.5 weeks to 6 months. Three patients had surgical confirmation of their injuries, with time from imaging to surgery of 2 days to 9 months. RESULTS: In four patients, the UCL was ruptured, manifest sonographically in three cases as discontinuity of the normally hyperechoic ligament with anechoic fluid in the gap and in one case as non-visualization of the ligament with heterogeneous echogenicity in the expected location of the ligament. Two adolescent patients had avulsions of the UCL from the medial epicondyle, with sonographic demonstration of the avulsed echogenic bony fragment in both cases. One patient had a mild sprain, manifest as mild thickening and decreased echogenicity of the ligament sonographically compared with the contralateral normal elbow, with mild surrounding hypoechoic edema. The eighth patient had a small partial tear of the deep surface of the distal aspect of the ligament, visualized as a hypoechoic focus between the deep surface of the ligament and its ulnar attachment. CONCLUSION: Tears of the ulnar collateral ligament are manifested sonographically as non-visualization of the ligament or alteration of the normal morphology.
参考中文摘要:
目的:本研究的目的是描述超声损伤的外观尺韧带(化工)的肘部。设计与患者:八个非专业棒球投手男性,年龄13-35岁,肘内侧疼痛,临床上怀疑尺侧副韧带损伤,被称为成像。所有8个接受检查的影响和对侧无症状肘,也经历了6磁共振成像。既不外翻应力,也不是用能量多普勒超声检查期间。时间从出现症状,影像为1.5周的6个月。 3例手术证实了他们的伤害,随着时间的推移从成像手术的2天至9个月。结果: 4例,在伦敦大学学院的破裂,表明超声3例为不连续的,通常回声韧带消声流体中的差距,并在一个案件中的非可视化的韧带回声不均匀的预期位置韧带。两名青少年患者avulsions的伦敦大学学院从内侧髁,与超声示范回声骨撕脱片段在这两种情况下。一位病人有轻微扭伤,表现为轻度增厚,降低回声韧带超声与对侧正常肘,周围低回声轻度水肿。第八届病人一小部分撕裂的深面远端方面的韧带,可视化作为一个低集中深面之间的韧带和尺附件。结论:泪尺韧带表现超声非可视化的韧带或改变形态正常。
中文提供:
4
参考中文标题:
钙化焦磷酸钙二水( CPPD )结晶沉积在膝盖:解剖学,影像学,磁共振成像和病理研究标本。
作者单位:
Department of Musculoskeletal Radiology, University of California, San Diego, VA San Diego Healthcare System, 3350 La Jolla Village Drive, CA 92162, San Diego, USA.
PMID及链接:
15138720 http://www.syyxw.com/Archive/Detail/15138720
摘 要:
OBJECTIVE: To demonstrate and determine the frequency and location of calcification within cadaveric knees with or without calcification typical of calcium pyrophosphate dihydrate (CPPD), utilizing histologic, radiographic and MR imaging techniques. DESIGN AND PATIENTS: Ten cadaveric knees of elderly individuals that demonstrated no radiographic evidence of prior surgery or trauma were studied with MR imaging and subsequently sectioned in planes corresponding to those obtained with MR imaging. The slices were imaged with high-resolution radiography. Two musculoskeletal radiologists correlated the anatomic, MR and radiographic findings. Three of the knees, which did not demonstrate calcifications, were utilized as controls. Histologic sections were obtained from four knees that contained calcifications and from the three controls, and analyzed with special histologic stains that demonstrate phosphorus and calcium. RESULTS: Radiographic imaging and histologic analysis demonstrated widespread CPPD crystal deposition in four of the 10 knee specimens (40%). MR imaging demonstrated some calcifications only within the articular cartilage of the femoral condyles in three of the four (75%) specimens that had CPPD deposits. In all four specimens radiographs and histologic analysis were more sensitive than MR imaging. Histologic analysis demonstrated no evidence of CPPD crystals in the control specimens. CONCLUSION: MR imaging is insensitive to the presence of CPPD deposits in the knee, even when such deposits are widespread. Our study suggests that the sensitivity of MR imaging was significantly better in detecting CPPD deposits in the hyaline cartilage of the femoral condyles when compared with other internal structures, even when such structures contained a higher amount of calcification.
参考中文摘要:
目的:为了进行演示和确定的频率和位置的尸体膝盖内钙化或无钙化典型的焦磷酸钙二水( CPPD ) ,利用组织学,影像学和磁共振成像技术。设计与患者: 10尸体膝盖的老年人个人,没有表现出放射线的证据之前手术或外伤的磁共振成像研究,随后在飞机切片相应的结果与磁共振成像。切片被拍摄高分辨率X线摄影。两个肌肉骨骼放射相关的解剖, MR和X线表现。三个膝盖,没有表现出钙化,被用来作为对照组。病理切片获得四个膝盖所载钙化和来自三个控制,并分析了特殊病理染色,表明磷和钙。结果: X线影像学,组织学分析表明普遍CPPD晶体沉积在四个10膝关节标本( 40 % ) 。磁共振成像显示出一定的钙化只有在关节软骨的股骨髁在3个( 75 % )标本有CPPD存款。在所有四个标本X线和病理分析更加敏感比磁共振成像。组织学分析表明没有证据显示CPPD晶体标本的控制。结论:磁共振成像是麻木不仁的存在CPPD存款的膝盖,即使这种存款的情况十分普遍。我们的研究表明,磁共振成像的敏感性显着更好地在侦查CPPD存款透明软骨的股骨髁相比其他内部结构,即使在这种结构中载有较高数额的钙化。
中文提供:
5
参考中文标题:
终板骨髓变化无症状腰骶棘:频率,分布和相关的年龄和退行性变化。
作者单位:
Department of Radiology, VA Healthcare System, 3350 La Jolla Village Drive, La Jolla, CA 92161, USA. cbchung@ucsd.edu
PMID及链接:
15138721 http://www.syyxw.com/Archive/Detail/15138721
摘 要:
PURPOSE: To investigate the frequency and distribution of end plate marrow signal intensity changes in an asymptomatic population and to correlate these findings with patient age and degenerative findings in the spine. MATERIALS AND METHODS: MR imaging studies of the lumbosacral (LS) spine in 59 asymptomatic subjects were retrospectively reviewed by 2 musculoskeletal radiologists to determine the presence and location of fat-like and edema-like marrow signal changes about the end plates of the L1-2 through L5-S1 levels. The presence of degenerative changes in the spine was recorded as was patient age. Descriptive statistics were utilized to determine the frequency and associations of end plate findings and degenerative changes in the spine. Interobserver variability was determined by a kappa score. Binomial probability was used to predict the prevalence of the end plate changes in a similar subject population. The Fisher exact test was performed to determine statistical significance of the relationship of end plate changes with degenerative changes in the spine, superior versus inferior location about the disc and age of the patient population. RESULTS: Focal fat-like signal intensity adjacent to the vertebral end-plate was noted in 15 out of 59 subjects by both readers, and involved 38 and 36 out of 590 end plates by readers 1 and 2, respectively. Focal edema-like signal intensity adjacent to the vertebral end plate was noted in 8 out of 59 subjects by both readers and involved 11 and 10 out of 590 end plates by readers 1 and 2, respectively. Either fat or edema signal intensity occurred most often at the anterior ( p<.05) aspects of the mid-lumbar spine and was seen in an older sub-population of the study ( p<.05). CONCLUSION: End plate marrow signal intensity changes are present in the lumbar spine of some asymptomatic subjects with a characteristic location along the spine and in vertebral end plates.
参考中文摘要:
目的:探讨的频率和分布终板骨髓信号强度的变化无症状人口和关联这些结果与患者年龄和退行性脊柱结果。材料与方法:磁共振成像研究腰骶部(镑) 59脊柱无症状受试者回顾2肌肉骨骼放射确定的存在和位置,脂肪类和水肿样骨髓信号变化的端板的腰椎2 ,通过腰5 S1蛋白的水平。在场的退行性改变脊柱被记录为是病人的年龄。描述性统计,以确定利用的频率和协会的调查结果和终板退变的脊椎。 Interobserver变化是确定的转录评分。二项式概率是用来预测流行的终板的变化类似主题的人口。费雪确切的测试是确定统计意义的关系,终板的变化退行性改变脊柱,位置优越与低劣的光盘和年龄的患者群。结果:局灶性脂肪样信号强度邻近椎体终板注意到在15个学科的59个读者,并参与了38和36年底的590车牌的读者1和第2款,分别为。局灶性水肿样信号强度邻近椎体终板注意到在8个学科的59个读者和参与了11日和10月底的590车牌的读者1和第2款,分别为。无论脂肪或水肿信号强度往往发生在最前( p “ 0.05 )方面的中期腰椎被视为在旧分人口研究( p ” 0.05 ) 。结论:端板骨髓信号强度的变化存在于腰椎一些无症状的受检者的一个特点位置沿脊柱椎体终板。
中文提供:
6
参考中文标题:
经常性分枝杆菌海鱼腱鞘炎的腕关节滑膜软骨瘤病模仿extraarticular的MR影像。
作者单位:
Department of Radiology, Mallinckrodt Institute of Radiology, St. Louis, MO, USA. Leeed@mir.wustl.edu
PMID及链接:
15127246 http://www.syyxw.com/Archive/Detail/15127246
摘 要:
Tenosynovitis caused by atypical mycobacterial infections may produce rice bodies within affected tendon sheaths. We report a case of recurrent M. marinum infection involving the flexor tendons within the carpal tunnel in which the rice bodies were mistaken for synovial chondromatosis on MR images.
参考中文摘要:
腱鞘炎非典型分枝杆菌引起的感染可能会产生影响水稻机构肌腱鞘。我们报告一例复发先生海鱼感染涉及屈肌腱腕隧道内,其中大米的尸体被误诊为滑膜软骨瘤病的MR影像。
中文提供:
7
参考中文标题:
结核分枝杆菌海鱼:磁共振成像及临床过程中一种罕见的软组织感染。
作者单位:
Department of Diagnostic Radiology, University Hospital of Bern, Inselspital, 3010 Bern, Switzerland.
PMID及链接:
15205928 http://www.syyxw.com/Archive/Detail/15205928
摘 要:
Mycobacterium marinum is a rare cause of soft tissue infections. The imposing MR appearance of the soft tissue involvement is in contrast to the chronic painless clinical manifestation.
参考中文摘要:
海鱼分枝杆菌是一种罕见的原因,软组织感染。 MR表现的强加的软组织的参与是在对比的是慢性疼痛的临床表现。
中文提供:
8
参考中文标题:
Ischiogluteal滑囊炎:一种罕见类型的滑囊炎。
作者单位:
Department of Radiology, University Hospitals, Catholic University Leuven, Leuven, Belgium.
PMID及链接:
15138722 http://www.syyxw.com/Archive/Detail/15138722
摘 要:
Ischiogluteal bursitis is a rare, infrequently recognized soft tissue mass of the buttock region. Of importance is the radiological differential diagnosis with other benign and malignant soft-tissue tumors. We describe the imaging findings of bursitis.
参考中文摘要:
Ischiogluteal滑囊炎是一种罕见的,很少认识到软组织肿块的臀部区域。重要的是放射性的鉴别诊断与其他良,恶性软组织肿瘤。我们描述了成像结果滑囊炎。
中文提供:
9
参考中文标题:
不寻常的续集年底破裂远端肱二头肌肌腱模仿软组织肿瘤。
作者单位:
Department of Bone and Soft Tissue, Tata Memorial Hospital, E. Borges Road, Parel, Bombay, India.
PMID及链接:
15205929 http://www.syyxw.com/Archive/Detail/15205929
摘 要:
OBJECTIVE: We report a rare case of chronic, neglected rupture of the distal biceps brachii which presented with gradually increasing swelling over the left lower arm. Fine-needle aspiration cytology was reported as indicative of a soft-tissue neoplasm. Computed tomography and magnetic resonance imaging were unable to rule out a neoplastic mass. Final histopathology after surgical excision revealed a reparative process. CONCLUSION: Such a presentation of ruptured biceps brachii wherein the clinicoradiological features are misleading and suggestive of a soft-tissue tumor is quite unusual.
参考中文摘要:
目的:报告一例罕见的慢性,忽视破裂远端肱二头肌其中提出的逐步增加肿胀的左前臂。细针穿刺细胞学检查报告表明软组织肿瘤。计算机断层扫描和磁共振成像无法排除肿瘤质量。最后手术切除后病理显示,修复的进程。结论:这样一个介绍破裂肱二头肌,其中clinicoradiological功能误导和暗示性的软组织肿瘤的现象非常罕见。
中文提供:
10
参考中文标题:
血管内乳头状内皮增生症(马尾松的肿瘤)提出的肱三头肌质量。
作者单位:
Department of Radiology, University of Miami, 1115 NW 14th Street, 33136, Miami, FL 33136, USA.
PMID及链接:
15205930 http://www.syyxw.com/Archive/Detail/15205930
摘 要:
Intravascular papillary endothelial hyperplasia (IPEH) is a nonneoplastic reactive endothelial proliferation most commonly located in the skin or subcutaneous tissues although it has been reported in multiple locations throughout the body. We present a case of intravascular papillary endothelial hyperplasia presenting as a soft tissue mass in the triceps muscle. IPEH is not well-described in the radiologic literature.
参考中文摘要:
血管内乳头状内皮增生症( IPEH )是一种内皮细胞增殖nonneoplastic反应最常见的位于皮肤或皮下组织虽然据报道在多个地点整个身体。本病例血管内乳头状内皮增生提出的软组织肿块中的三头肌。 IPEH没有很好地描述了影像文献。
中文提供:
11
参考中文标题:
MRI表现肌炎Behcet病。
作者单位:
Department of Radiology, Kocaeli University School of Medicine, Kocaeli, Derince, Turkey. gakansel@superonline.com
PMID及链接:
15133638 http://www.syyxw.com/Archive/Detail/15133638
摘 要:
We report the magnetic resonance imaging findings in a case of localized myositis in a 23-year-old man with long-standing Behcet disease.
参考中文摘要:
我们报告磁共振成像结果的情况下局部肌炎的23岁男子长期Behcet病。
中文提供:
12
参考中文标题:
第一次报告的附件腘肌:检测与MRI 。 [错误出现在骨骼放射治疗。 2004年09月33 ( 9 ) : 550 ] 。
作者单位:
MR Research Group of the Institute of Diagnostic Radiology, Kantonsspital Winterthur, Brauerstrasse 15, 8401, Winterthur, Switzerland.
PMID及链接:
15127245 http://www.syyxw.com/Archive/Detail/15127245
摘 要:
During an MRI examination of the knee in a 48-year-old patient suffering from degenerative changes of a partly resected medial meniscus and concomitant osteoarthritis of the knee joint, an unusual variant of an accessory muscle in the popliteal fossa was found. To our best knowledge this muscle has never been described before. Because of the close relationship to the popliteal muscle with regard to course and localisation in the deep popliteal fossa ventral to the popliteal artery, the term "accessory popliteal muscle" is proposed.
参考中文摘要:
在MRI检查膝关节48岁的病人患有退行性改变的一个部分切除内侧半月板和伴随骨性关节炎的膝关节,一个不寻常的变种从犯肌肉在腘窝被发现。我们的最好的知识这个肌肉从未描述面前。由于有着密切的关系的腘肌关于课程和本地化深腹腘窝的腘动脉而言, “配件腘肌”的建议。
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