A patient with cardiac amyloidosis presenting a rapid increase in technetium-99m-hydroxymethylene diphosphonate accumulation

We assessed the changes in cardiac condition in a patient with cardiac amyloidosis, by means of dual nuclei single photon emission computed tomographic (SPECT) images with technetium-99m-hydroxymethylene diphosphonate (^99mTc-HMDP) and thallium-201 (²⁰¹Tl). Dual SPECT showed a marked increase in myocardial^99mTc-HMDP accumulation along with deterioration of symptoms and signs, while²⁰¹Tl scintigraphy remained almost unchanges.     

Amyloidosis of the spine in a patient on long-term hemodialysis

Summary A 54-year-old man with a history of renal failure treated with hemodialysis for over 10 years presented with clinical signs and symptoms and plain radiographic, computed tomographic and magnetic resonance imaging features of cervical vertebral osteomyelitis with spinal cord compression. Decompressive surgery revealed amyloid deposition. In the setting of chronic hemodialysis, differentation between amyloid deposition and osteomyelitis may not be possible on an imaging basis necessitating biopsy for diagnosis.     

Atypical cystic meningioma of the trigeminal nerve in a pediatric patient

SUMMARY: We report an unusual case of atypical cystic meningioma of the trigeminal nerve proved by histology in a 15-year-old white girl. A review of the literature showed that this is only the second reported case of a meningioma of the trigeminal nerve without dural attachment and the first occurrence in a pediatric patient.     

Amyloid tumor in a patient on a regular hemodialysis program]

Amyloidosis is frequent complication in the patients subjected to hemodialysis, and is most frequently manifested in carpal tunnel syndrome, scapulohumeral periarthritis, osseous cysts and exceptionally as solitary tumor. A patient in presented, aged 72 years, who had undergone chronic dialysis for 10 years, in the last 4 years with symptoms and signs of amyloidosis, such as scapulohumeral periarthritis and erosive arthritis of the knee with recurrent effusions. A year ago he had noticed a tumor in the left popliteal cavity that had been progressively increasing and had limited the movements of the knee. After the extirpation, the diagnosis of amyloid tumor was confirmed by histopathologic analysis.     

Accumulation of Tc-99m MDP in amyloidosis involving the tongue

Radionuclide bone imaging using Tc-99m phosphates may show accumulation of activity in amyloid deposits. While many sites of amyloidosis have been detected with bone imaging, many reports center on cardiac amyloidosis. The case reported here demonstrates accumulation of Tc-99m MDP in amyloidosis involving the skin and muscle, including the tongue.     

Kaposi's sarcoma involving the thyroid in a patient with AIDS

A 30-year-old man with acquired immune deficiency syndrome (AIDS) and Kaposi's sarcoma had a palpable thyroid mass and cervical lymphadenopathy. Nuclear medicine and ultrasound scans revealed multiple thyroid nodules. Results of biopsy showed Kaposi's sarcoma metastatic to the thyroid.     

Synovial hemangioma of the hip joint in a pediatric patient

Hemangiomas of the articular synovium are rare and commonly associated with recurrent joint swelling and painful limitation of motion. The knee joint is the most commonly involved site, with most patients diagnosed in the second to third decade of life [1]. Although over 200 cases have been reported in the English-language medical literature, only three have originated within the hip joint, all of which were in adult patients reported in the surgical literature [2–4]. We describe a histologically proven synovial hemangioma of the hip joint in a pediatric patient that invaded the femur, acetabulum, and adjacent soft tissues, with a detailed discussion of the differential diagnosis based on the radiographic and magnetic resonance imaging (MRI) findings.     

Unicondylar osteoarticular allograft reconstruction of the distal femur in a patient with a traumatic osteoaticular defect of the lateral femoral condyle

Purpose  

The objective of this study was to report the clinical results for a patient with a post-traumatic osteoarticular defect of the lateral femoral condyle treated with unicondylar osteoarticular allograft reconstruction.     

Atypical imaging appearance of toxoplasmosis in an HIV patient as a butterfly lesion

In acquired immunodeficiency syndrome (AIDS) patients, differentiating toxoplasmosis and primary central nervous system (CNS) lymphoma remains a clinical and radiographic dilemma. The presence of butterfly lesions crossing the corpus callosum is customarily used to exclude the possibility of toxoplasmosis. We present an AIDS patient who had Epstein‐Barr virus (EBV) polymerase chain reaction (PCR) ‐positive cerebrospinal fluid studies with a butterfly toxoplasmosis lesion confirmed by multiple methods signifying the importance of including toxoplasmosis in the differential diagnosis of butterfly lesions. J. Magn. Reson. Imaging 2009;30:873–875. © 2009 Wiley‐Liss, Inc.     

Cutaneous fistula communicating with the hip in a patient with a painful total hip prosthesis. Demonstration by radionuclide arthrography

Radionuclide arthrography is becoming increasingly useful in the evaluation of femoral component loosening in patients with a painful total hip prosthesis. Additional potential advantages of radionuclide arthrography include detection of abnormal communications with the hip, such as bursae, abscess cavities, and fistulas. A case of cutaneous fistula communicating with the hip in a patient with loosening and infection of the femoral component of the total hip prosthesis that is clearly demonstrated by radionuclide arthrography is presented.     

Case report: Delayed enhancement on cardiac MRI in a patient with multiple myeloma without amyloidosis

We report the first observation of diffuse subendocardial and myocardial delayed enhancement on cardiac MRI in a 50-year-old patient with recurrent multiple myeloma but without evidence of amyloidosis. She presented with advanced heart failure and severe restrictive cardiomyopathy. Myocardial biopsy revealed endomyocardial fibrosis. The case was associated with development of multiple arterial and venous thromboses and a fatal course. Because of the fatal outcome, the prognostic significance of delayed enhancement on MRI in multiple myeloma patients may need to be further investigated.     

快速康复对老年股骨颈骨折全髋关节置换患者髋关节功能的影响

目的研究快速康复对老年股骨颈骨折(FNF)全髋关节置换(THA)患者髋关节功能的影响。方法 2014年7月—2017年6月成都医学院第一附属医院骨科治疗128例老年FNF患者。其中男性72例,女性56例;年龄62～83岁,平均71.44岁。致伤原因:跌倒伤75例,坠落伤26例,道路交通伤22例,其他5例。依据随机数字表法分为快速康复组(n=64)和对照组(n=64)。术后,对照组采用常规康复方案,快速康复组采用快速康复方案,内容包括:制定快速康复方案、康复宣教、疼痛管理、康复锻炼。观察两组康复后6、12个月髋关节功能,日常生活能力及生存质量评分,血清缓激肽(BK)、前列腺素E_2(PGE_2)、5-羟色胺(5-HT)、脑内神经肽Y(NPY)等疼痛因子,首次下床时间,术后住院时间,住院费用以及术后并发症。结果康复6、12个月,快速康复组Harris评分、日常生活能力量表(ADL)评分、生存质量量表(WHO-QOL)评分均高于对照组,BK、PGE_2、5-HT、NPY等疼痛因子水平均低于对照组(P<0.05)。快速康复组首次下床时间、术后住院时间及住院费用均少于对照组(P<0.05)。快速康复组术后并发症发生率(7.81%)低于对照组(59.38%,P<0.05)。结论快速康复可快速重建老年患者FNF行THA后髋关节功能,提高日常生活能力及生存质量,抑制释放疼痛因子,且康复快,值得临床应用。     

Similar patient positioning: A key factor in follow-up studies when using model-based radiostereometric analysis of the hip

IntroductionDespite protocols, patients are not positioned exactly alike at radiostereometric (RSA) follow-up examinations, and it is unknown how much variation is tolerable. We report precision for optimal and extreme position differences from a phantom hip-study, and clinical precision of hip-RSA.MethodsA femoral stem with 3 bead-towers was fixed in a saw bone with bone-markers (phantom), and series of RSA examinations within optimal (5 × 5 cm and 5°) and extreme (20 × 30 cm and 30°) phantom positions were obtained. Double-examination RSA of 12 patients with the same femoral stem type were analyzed. Both model-based (CAD) and marker-based (MM) analysis was used. Precision was reported as standard deviation of differences.ResultsPrecision for translations in the optimal and extreme phantom position were below 0.06 mm and 0.02 mm for MM analysis, and below 0.05 mm and 0.18 mm for CAD analysis, respectively. Precision for rotations in the optimal and extreme phantom rotation were below 0.18° and 0.26° for MM analysis, and below 0.34° and 0.52° for CAD analysis, respectively. Clinical precision was 0.29 mm and 0.44° for MM analysis, and 0.40 mm and 1.59° for CAD analysis.ConclusionExtreme differences in patient position during RSA examination negatively affects precision, and CAD model-analysis was more sensitive than MM analysis. Longitudinal translation and rotation about the long stem-axis are the effect parameters which are most affected by position and rotation changes, and also the best indicators of implant loosening.Implications for practiceBased on our research, we recommend that similar patient positioning between follow-up RSA examinations is debated and prioritized.     

失去常规静脉通道患者经肾静脉植入前端分离式血液透析导管一例

临床资料:患者女,33岁,肥胖,为终末期肾病患者。因肾移植失败及腹膜透析引起腹膜炎,须依赖长期血液透析,但是双股静脉及髂外静脉已闭塞,需依靠右颈内静脉作透