Synovial cavernous hemangioma with juxta-articular hemangioma in a 29-year old woman: A case report

Introduction: Synovial hemangiomas are a rare benign vascular malformation that most commonly affects the knee joint, usually involving the anterior compartment. Histopathology examination is considered the gold standard for the diagnosis of synovial hemangioma. Surgical excision, either done per arthroscopy or per arthrotomy, is the treatment of choice. Presentation of case: This study presents a 29-year-old female admitted to our hospital in March 2020 who complained of continuous pain, swelling, and recurrent haemarthroses without a history of trauma for six months. The anteroposterior and lateral plain radiographs of the left knee showed no abnormality. An ultrasound of the left knee showed lobulated hypoechoic lesions in intra-articular and infra-suprapatellar pouches. Multiple vessels within the lesion with the low-velocity venous flow have appeared in color-Doppler imaging. Magnetic resonance imaging (MRI) of the left knee showed an irregular soft tissue mass in intra-articular fossa that infiltrating infra-suprapatellar pouches along to vastus medialis muscle (juxta-articular areas) measuring about 87 � 72 � 75 mm. Synovial effusion and bone erosions were notable. Fine-needle aspiration cytology (FNAC) offered hemarthrosis. The excisional biopsy obtained from the lesion and imprint cytology performed immediately after tissue removal. The cytologic diagnosis was compatible with a benign vascular neoplasm. The histologic exam confirmed synovial hemangioma. Discussion: Synovial hemangioma is a rare benign tumor of vascular origin arising from synovium-lined tissues, and often affects adolescents and young adults. Synovial hemangioma is often associated with an adjacent cutaneous or deep soft tissue hemangioma. It is a vascular malformation that contains variable amounts of adipose, fibrous, and muscle tissue, as well as thrombi in the vessels. At present, MRI has become the modality of choice for the evaluation of hemangiomas. The final diagnosis established with the histologic examination. The choice treatment is surgical excision. Conclusion: Although synovial hemangioma is a rare condition, be considered for non-specific clinical symptoms. However, an early diagnosis of synovial hemangioma is fundamental for adequate treatment. © 2020 The Author

Right side splenorenal fusion with marked extramedullary hematopoiesis, a case report

Developmental abnormalities of the spleen are common, much less common is splenic fusion abnormality. It may present as a renal mass sometimes with symptoms of hypersplenism (anemia) or as a renal mass only, mimicking primary or secondary renal neoplasms on imaging studies. Its documented that occurred on the right side which is significant that provides evidence for the possible migration of spleen cells in embryogenesis as an explanation for some other splenic fusion anomalies. We report a case of splenorenal fusion in a 5-year old girl with only right functional kidney who initially presented with a large renal mass which mimicked a primary renal neoplasm with no history of splenic trauma or splenectomy in past medical history. Also, the child didn't present with symptoms of hypersplenism. The child underwent right nephrectomy for a renal mass that was subsequently confirmed as right splenorenal fusion pathologically. © 201

Right side splenorenal fusion with marked extramedullary hematopoiesis, a case report

Developmental abnormalities of the spleen are common, much less common is splenic fusion abnormality. It may present as a renal mass sometimes with symptoms of hypersplenism (anemia) or as a renal mass only, mimicking primary or secondary renal neoplasms on imaging studies. Its documented that occurred on the right side which is significant that provides evidence for the possible migration of spleen cells in embryogenesis as an explanation for some other splenic fusion anomalies. We report a case of splenorenal fusion in a 5-year old girl with only right functional kidney who initially presented with a large renal mass which mimicked a primary renal neoplasm with no history of splenic trauma or splenectomy in past medical history. Also, the child didn't present with symptoms of hypersplenism. The child underwent right nephrectomy for a renal mass that was subsequently confirmed as right splenorenal fusion pathologically. © 201

Precision measurement of vector and tensor analyzing powers in elastic deuteron-proton scattering

High precision vector and tensor analyzing powers of elastic deuteron-proton d+p scattering have been measured at intermediate energies to investigate effects of three-nucleon forces (3NF). Angular distribution in the range of 70-120 degree in the center-of mass frame for incident-deuteron energies of 130 and 180 MeV were obtained using the RIKEN facility. The beam polarization was unambiguously determined by measuring the 12C(d,alpha)10B(2+) reaction at 0 degree. Results of the measurements are compared with state-of-the-art three-nucleon calculations. The present modeling of nucleon-nucleon forces and its extension to the three-nucleon system is not sufficient to describe the high precision data consistently and requires, therefore, further investigation

Optimizing the design of invasive placebo interventions in randomized controlled trials

The authors thank A. Skilton for preparing Fig. 1. This study was supported by the NIHR Biomedical Research Centre at University Hospitals Bristol National Health Service (NHS) Foundation Trust and the University of Bristol, MRC ConDuCT‐II (Collaboration and innovation for Difficult and Complex randomised controlled Trials In Invasive procedures) Hub for Trials Methodology Research (MR/K025643/1) (http://www.bristol.ac.uk/population‐health‐sciences/centres/conduct2), a NIHR senior investigator award (NF‐SI‐0514‐10114) and the Bristol Royal College of Surgeons Trials Centre. The views expressed in this publication are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health and Social Care. The funders played no role in any aspect of the study design, analysis or publication decisions.Peer reviewedPublisher PD

Measurements of scattering observables for the pdpd break-up reaction

High-precision measurements of the scattering observables such as cross sections and analyzing powers for the proton-deuteron elastic and break-up reactions have been performed at KVI in the last two decades and elsewhere to investigate various aspects of the three-nucleon force (3NF) effects simultaneously. In 2006 an experiment was performed to study these effects in $\vec{p}+d$ break-up reaction at 135 MeV with the detection system, Big Instrument for Nuclear polarization Analysis, BINA. BINA covers almost the entire kinematical phase space of the break-up reaction. The results are interpreted with the help of state-of-the-art Faddeev calculations and are partly presented in this contribution.Comment: Proceedings of 19th International IUPAP Conference on Few-Body Problems in Physics, Bonn University, 31.08 - 05.09.2009, Bonn, GERMAN

Proton-deuteron radiative capture cross sections at intermediate energies

Differential cross sections of the reaction $p(d,^3{\rm He})\gamma$ have been measured at deuteron laboratory energies of 110, 133 and 180 MeV. The data were obtained with a coincidence setup measuring both the outgoing $^3$He and the photon. The data are compared with modern calculations including all possible meson-exchange currents and two- and three- nucleon forces in the potential. The data clearly show a preference for one of the models, although the shape of the angular distribution cannot be reproduced by any of the presented models.Comment: 6 pages, 6 figures, accepted for publication in EPJ

Microbial fuel cells: a green and alternative source for bioenergy production

Microbial fuel cell (MFC) represents one of the green technologies for the production of bioenergy. MFCs using microalgae produce bioenergy by converting solar energy into electrical energy as a function of metabolic and anabolic pathways of the cells. In the MFCs with bacteria, bioenergy is generated as a result of the organic substrate oxidation. MFCs have received high attention from researchers in the last years due to the simplicity of the process, the absence in toxic by-products, and low requirements for the algae growth. Many studies have been conducted on MFC and investigated the factors affecting the MFC performance. In the current chapter, the performance of MFC in producing bioenergy as well as the factors which influence the efficacy of MFCs is discussed. It appears that the main factors affecting MFC’s performance include bacterial and algae species, pH, temperature, salinity, substrate, mechanism of electron transfer in an anodic chamber, electrodes materials, surface area, and electron acceptor in a cathodic chamber. These factors are becoming more influential and might lead to overproduction of bioenergy when they are optimized using response surface methodology (RSM)

Spin observables in deuteron-proton radiative capture at intermediate energies

A radiative deuteron-proton capture experiment was carried out at KVI using polarized-deuteron beams at incident energies of 55, 66.5, and 90 MeV/nucleon. Vector and tensor-analyzing powers were obtained for a large angular range. The results are interpreted with the help of Faddeev calculations, which are based on modern two- and three-nucleon potentials. Our data are described well by the calculations, and disagree significantly with the observed tensor anomaly at RCNP.Comment: 10 pages, 4 figures, submitted to PL

Comprehensive measurements of cross sections and spin observables of the three-body break-up channel in deuteron-deuteron scattering at 65 MeV/nucleon

Detailed measurements of five-fold differential cross sections and a rich set of vector and tensor analyzing powers of the 2H(d; dp)n break-up process using polarized deuteron-beam energy of 65 MeV/nucleon with a liquid-deuterium target are presented. The experiment was conducted at the AGOR facility at KVI using the BINA 4Pi-detection system. We discuss the analysis procedure including a thorough study of the systematic uncertainties. The results can be used to examine upcoming state-of-the-art calculations in the four-nucleon scattering domain, and will, thereby, provide further insights into the dynamics of three- and four-nucleon forces in few-nucleon systems. The results of coplanar configurations are compared with the results of recent theoretical calculations based on the Single-Scattering Approximation (SSA). Through these comparisons, the validity of SSA approximation is investigated in the Quasi-Free (QF) region.Comment: 33 pages, 30 figure