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https://www.readbyqxmd.com/read/28343327/osteolytic-variant-poems-syndrome-an-uncommon-presentation-of-osteosclerotic-myeloma
#1
Michael S Clark, Benjamin M Howe, Katrina N Glazebrook, Michelle L Mauermann, Stephen M Broski
Polyneuropathy, organomegaly, endocrinopathy, M protein, and skin changes (POEMS) syndrome, a form of osteosclerotic myeloma, is a multisystem disease related to a monoclonal plasma cell proliferative disorder. Osseous lesions are most commonly sclerotic on radiographs and computed tomography (CT), demonstrate low T1 and T2 signal intensity on magnetic resonance imaging (MRI), and have variable degrees of avidity on positon emission tomography (PET) imaging using 18-fluorodeoxyglucose ((18)F-FDG). We present three cases of POEMS syndrome manifesting as osteolytic lesions with indolent features, including well-defined thin sclerotic rims, no cortical disruption or periosteal reaction, no associated soft-tissue mass, and a periarticular location, all features that could lead to misinterpretation as benign bone lesions...
March 25, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28343291/intercalary-frozen-autograft-for-reconstruction-of-malignant-bone-and-soft-tissue-tumours
#2
Karem M Zekry, Norio Yamamoto, Katsuhiro Hayashi, Akihiko Takeuchi, Takashi Higuchi, Kensaku Abe, Yuta Taniguchi, Ali Zein A A Alkhooly, Ahmed Saleh Abd-Elfattah, Ezzat H Fouly, Adel Refaat Ahmed, Hiroyuki Tsuchiya
PURPOSE: In 1999, we developed a technique using frozen autografts-tumour-containing bone treated with liquid nitrogen-for the reconstruction of malignant bone tumours. The purpose of this study was to evaluate the functional and oncological outcomes of frozen autografts for intercalary reconstruction of malignant bones and soft tissue tumours. METHODS: This retrospective study was designed to assess 34 patients of mean age 35 (range, 6-79) years. The mean follow-up period was 62 (24-214) months...
March 25, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28343260/urethral-lumen-occlusion-by-artificial-sphincteric-devices-a-computational-biomechanics-approach
#3
Arturo Nicola Natali, Emanuele Luigi Carniel, Chiara Giulia Fontanella, Silvia Todros, Giulia Maria De Benedictis, Maria Angela Cerruto, Walter Artibani
The action induced by artificial sphincteric devices to provide urinary continence is related to the problem of evaluating the interaction between the occlusive cuff and the urethral duct. The intensity and distribution of the force induced within the region of application determine a different occlusion process and potential degradation of the urethral tissue, mostly at the borders of the cuff. This problem is generally considered in the light of clinical and surgical operational experience, while a valid cooperation is established with biomechanical competences by means of experimental and numerical investigation...
March 25, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28343024/sex-estimation-with-the-total-area-of-the-proximal-femur-a-densitometric-approach
#4
Francisco Curate, Anabela Albuquerque, Izilda Ferreira, Eugénia Cunha
The estimation of sex is a central step to establish the biological profile of an anonymous skeletal individual. Imaging techniques, including bone densitometry, have been used to evaluate sex in remains incompletely skeletonized. In this paper, we present a technique for sex estimation using the total area (TA) of the proximal femur, a two-dimensional areal measurement determined through densitometry. TA was acquired from a training sample (112 females; 112 males) from the Coimbra Identified Skeletal Collection (University of Coimbra, Portugal)...
March 8, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28343002/pulmonary-metastatic-angiosarcoma-from-scalp-with-fatal-complication-a-case-report
#5
Yung-Sheng Cheng, Tim-Mo Chen, Wen-Chiuan Tsai, Tsai-Wang Huang
INTRODUCTION: Angiosarcoma is a rare malignant neoplasm with poor prognosis. Angiosarcoma of the scalp is frequently recurs locally, and metastasizes early despite various treatments. The common sites of metastatic are lung, liver, and lymph nodes. Pulmonary metastasis with hemoptysis and pneumothorax is rare but threatening. PRESENTATION OF CASE: A 77-year-old male had recurrent angiosarcoma of the scalp even with post operation radiotherapy. At the same time, recurrent pneumothorax was noted, thus he underwent wedge resection of the right upper lobe of the lung plus pleural biopsy...
February 20, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28342782/the-modified-glasgow-prognostic-score-in-patients-undergoing-surgery-for-bone-and-soft-tissue-sarcoma
#6
Rossel Morhij, Ashish Mahendra, Mike Jane, Donald C McMillan
BACKGROUND: The prognostic significance of markers of the systemic inflammatory response in patients with soft tissue and bone sarcomas remains unclear. Therefore, the present study aimed to compare the prognostic value of markers of the systemic inflammatory response in patients undergoing surgery for primary soft tissue and bone sarcoma. METHOD: Patients who underwent resection of primary soft tissue/bone sarcoma between 2008 and 2012 and had pre-operative measurements of the systemic inflammatory response [C-reactive protein, albumin, white cell, neutrophil, lymphocyte and platelet counts, and the combination of C-reactive protein and albumin (mGPS)] were included in the study (n = 111)...
February 24, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28342738/american-brachytherapy-society-consensus-statement-for-soft-tissue-sarcoma-brachytherapy
#7
A O Naghavi, D C Fernandez, N Mesko, A Juloori, A Martinez, J G Scott, C Shah, L B Harrison
PURPOSE: Radiation therapy represents an essential treatment option in the management of soft tissue sarcomas (STS). Brachytherapy represents an important subset of radiation therapy techniques used for STS, with evolving indications and applications. Therefore, the purpose of this guideline was to update clinicians regarding the data surrounding brachytherapy (BT) and provide recommendations for the utilization of BT in patients with STS. METHODS AND MATERIALS: Members of the American Brachytherapy Society with expertise in STS, and STS BT in particular, created an updated guideline for the use of BT in STS based on a literature review and clinical experience...
March 22, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28342651/from-classical-to-nonparametric-growth-models-towards-comprehensive-modelling-of-mussel-growth-patterns
#8
Isabel Fuentes-Santos, Uxío Labarta, Kristina Arranz, Mª José Fernández-Reiriz
Understanding biological processes, such as growth, is crucial to development management and sustainability plans for bivalve populations. Von Bertalanffy and Gompertz models have been commonly used to fit bivalve growth. These models assume that individual growth is only determined by size, overlooking the effects of environmental and intrinsic conditions on growth patterns. The comparison between classical models and nonparametric GAM (generalized additive models) fits conducted in this work shows that the latter provide a more realistic approach of mussel growth measured in terms of shell length, and dry weight of hard and soft tissues...
March 18, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28342545/distal-tibial-nonunion-using-a-contralateral-anterior-l-shaped-locking-compression-plate-through-a-posterior-lateral-approach-a-retrospective-case-series
#9
Chuanlu Lin, Lixiang Lin, Lutchooman Vinesh, Xiwen Shao, Xiaolang Lu, Jianjun Hong
BACKGROUND: Distal tibial nonunion is usually due to severe open distal tibial fractures with high energy injury. The best surgical treatment is not well established because of the poor soft tissue condition. We retrospectively analyzed a series of patients with distal tibial nonunion after severe open distal tibial fractures; our purpose was to introduce a treatment using a contralateral anterior L-shaped locking compression plate through a posterior-lateral approach with Iliac crest bone graft and evaluate the outcomes of patients...
March 19, 2017: Injury
https://www.readbyqxmd.com/read/28342371/contrast-enhancement-with-uranyl-acetate-allows-quantitative-analysis-of-the-articular-cartilage-by-microct-application-to-mandibular-condyles-in-the-btx-rat-model-of-disuse
#10
Jean-Daniel Kün-Darbois, Florence Manero, Louis Rony, Daniel Chappard
Microcomputed tomography (microCT) is well adapted to quantitative analysis of calcified tissues but soft tissues (such as cartilage) are radiolucent and need a contrast enhancement procedure for microCT. We developed a "staining" method allowing microCT imaging of articular cartilage using uranyl acetate (UA). The method was used to see whether adult rats with a botulinum toxin (BTX) injection in masticatory muscles present a change at the condylar cartilage of the mandible in association with a localized trabecular bone loss...
March 21, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28342324/short-bursts-of-cyclic-mechanical-compression-modulate-tissue-formation-in-a-3d-hybrid-scaffold
#11
M Brunelli, C M Perrault, D Lacroix
Among the cues affecting cells behaviour, mechanical stimuli are known to have a key role in tissue formation and mineralization of bone cells. While soft scaffolds are better at mimicking the extracellular environment, they cannot withstand the high loads required to be efficient substitutes for bone in vivo. We propose a 3D hybrid scaffold combining the load-bearing capabilities of polycaprolactone (PCL) and the ECM-like chemistry of collagen gel to support the dynamic mechanical differentiation of human embryonic mesodermal progenitor cells (hES-MPs)...
March 18, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28340490/a-novel-method-of-neo-osseous-flap-prefabrication-induction-of-free-calvarial-periosteum-with-bioactive-glass
#12
Ali Aliyev, Omer Ekin, Ozan Bitik, Gokhan Tuncbilek
Background Reconstruction of craniofacial bone defects is a primary focus of craniofacial surgery. Although autogenous bone grafts remain as the gold standard, alloplastic materials have also gained widespread popularity due to their off-the-shelf availability, ease of use, and durability. In addition to replacing the missing bone, some of these alloplastic materials have also been found to induce new bone formation. Objectives In this study, the phenomenon of neo-osseous induction with bioactive glass was investigated for different implant-soft tissue configurations...
March 24, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28340105/morin-stain-detects-aluminum-containing-macrophages-in-macrophagic-myofasciitis-and-vaccination-granuloma-with-high-sensitivity-and-specificity
#13
Rati Chkheidze, Dennis K Burns, Charles L White, Diana Castro, Julie Fuller, Chunyu Cai
Macrophagic myofasciitis (MMF) is an inflammatory condition associated with the intramuscular (i.m.) injection of aluminum adjuvant-containing vaccines. It is clinically characterized by myalgia, weakness, and chronic fatigue and histologically by aggregates of cohesive macrophages with abundant basophilic, periodic acid-Schiff (PAS)-positive, diastase-resistant granules that percolate through the peri- and endomysium without eliciting substantial myofiber damage. The definitive diagnosis of MMF requires demonstration of aluminum within these macrophages...
March 15, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28339510/3d-dentofacial-photogrammetry-reference-values-a-novel-approach-to-orthodontic-diagnosis
#14
Mohamed I Masoud, Neetu Bansal, Jose C Castillo, Amornrut Manosudprasit, Veerasathpurush Allareddy, Arshan Haghi, Hannah C Hawkins, Erik Otárola-Castillo
Background: Orthodontic diagnostic standards generally use the cranial base as a reference and rely on samples selected by orthodontists. Objective: The purpose of this study was to provide male and female standards for a novel non-radiographic approach for orthodontic diagnosis that utilizes 3D dentofacial photogrammetry using the eyes and natural head orientation as references instead of the cranial base. Methods: One hundred and eighty females and 200 males between the ages of 18 and 35 years from 2 modeling agencies were orthodontically screened for near ideal occlusion...
November 3, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339445/transforaminal-endoscopic-decompression-for-a-giant-epidural-gas-containing-pseudocyst-a-case-report-and-literature-review
#15
Bin Zhu, Liang Jiang, Xiao Guang Liu
The isolated epidural gas-containing pseudocyst is an uncommon pathogenic factor for severe pain of the lower limb as a result of nerve root compression. After reviewing these rare cases reported in the literature, we found that the name, pathogenesis, and treatment strategy of this pathology remained controversial. The most common treatment is conservative treatment or percutaneous aspiration which might result inpoor pain relief and high recurrence rates. Moreover, the patient who received open surgery had good clinical outcome; however, he or she might experience a significant soft tissue injury...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339434/platelet-rich-plasma-in-musculoskeletal-pathology-a-necessary-rescue-or-a-lost-cause
#16
Annu Navani, Gang Li, Joshua Chrystal
BACKGROUND: Platelet rich plasma (PRP) has been used for decades to facilitate surgical tissue repair; therefore, the current trend of percutaneously injecting PRP to theoretically enhance tissue regeneration and repair is a logical progression. Applications include treatment of osteoarthritis, tendinopathy, chondropathy, acute and chronic soft tissue injuries, muscle or ligament tear, as well as enhancement of healing after bone or tissue reconstruction. However, there is limited evidence to support the use of PRP in the abovementioned conditions...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28338535/lung-cancers-associated-with-cystic-airspaces-natural-history-pathologic-correlation-and-mutational-analysis
#17
Florian J Fintelmann, Jesaja K Brinkmann, William R Jeck, Fabian M Troschel, Subba R Digumarthy, Mari Mino-Kenudson, Jo-Anne O Shepard
PURPOSE: The aim of the study was to investigate the natural history of non-small cell lung cancers (NSCLCs) associated with cystic airspaces, including histopathology and molecular analysis. MATERIALS AND METHODS: A total of 34,801 computed tomographic (CT) scans of 2954 patients diagnosed with NSCLC between 2010 and 2015 were evaluated for association with a cystic airspace. Characteristics on serial CT, 18F-fludeoxyglucose positron emission tomography, and pathologic analysis were recorded...
March 22, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28338390/biologic-remodeling-of-periodontal-dimensions-of-areas-treated-with-gingival-augmentation-procedure-gap-a-25-year-follow-up-observation
#18
Giancarlo Agudio, Leandro Chambrone, Giovanpaolo Pini Prato
BACKGROUND: The role of keratinized tissue (KT) for maintenance of periodontal health has been debated for many years. This study assessed the long-term "biologic remodeling" of periodontal dimensions of teeth treated with free gingival grafts (FGG) compared to their adjacent/untreated teeth. METHODS: Seventy-four patients, with at least one site showing absence or a reduced amount of attached gingiva associated with gingival recession at baseline, were treated with FGG in a private practice...
March 24, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28338095/the-effect-of-microbial-mats-in-the-decay-of-anurans-with-implications-for-understanding-taphonomic-processes-in-the-fossil-record
#19
M Iniesto, I Villalba, A D Buscalioni, M C Guerrero, A I López-Archilla
The pattern and sequence of the decomposition of the Pipidae African dwarf frog (Hymenochirus boettgeri) is tracked in an experiment with microbial mats in order to explore soft tissue preservation over three years. Frog decay in microbial mats is preceded by rapid entombment (25-30 days) and mediated by the formation of a sarcophagus, which is built by a complex microbial community. The frog carcasses maintained a variety of soft tissues for years. Labile organic structures show greater durability within the mat, cells maintain their general shape (bone marrow cells and adipocytes), and muscles and connective tissues (adipose and fibrous tendons) exhibit their original organic structures...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28338036/to-cord-or-not-to-cord-that-is-still-a-question
#20
Analia Veitz-Keenan, James R Keenan
Data sourcesA broad computerised search with similar key terms was performed in different databases that included: Ovid Medline, Thomson's ISI Web of Science, PubMed, Science Direct, EMBASE and the Cochrane Library. Grey literature, dissertations, abstracts and theses were searched too. Reference lists of the selected articles were hand-searched.Study selectionThe inclusion criteria included in vivo randomised clinical trials and quasi-randomised clinical trials using gingival retraction techniques with and without cord...
March 2017: Evidence-based Dentistry
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