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https://www.readbyqxmd.com/read/28101170/extramedullary-hematopoiesis-a-report-of-two-cases
#1
Huan-Zhu Zhang, Ying Li, Xin Liu, Bao-Rong Chen, Guo-Hua Yao, Yu-Na Peng
Extramedullary hematopoiesis (EMH) is defined as hematopoiesis occurring in organs outside of the bone marrow. The present report describes two cases of thalassemic patients with paraspinal medullary hematopoiesis and analyzes the clinical manifestations, imaging, pathology, diagnosis and treatment of EMH. In addition, a supplementary review of previously published cases is provided along with a review of the related literature. Computed tomography (CT) of the first case revealed multiple paraspinal masses, and the largest was 6...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28094419/postoperative-computed-tomography-and-low-field-magnetic-resonance-imaging-findings-in-dogs-with-degenerative-lumbosacral-stenosis-treated-by-dorsal-laminectomy
#2
Martin Rapp, Charles J Ley, Kerstin Hansson, Lennart Sjöström
OBJECTIVES: To describe postoperative computed tomography (CT) and magnetic resonance imaging (MRI) findings in dogs with degenerative lumbosacral stenosis (DLSS) treated by dorsal laminectomy and partial discectomy. METHODS: Prospective clinical case study of dogs diagnosed with and treated for DLSS. Surgical and clinical findings were described. Computed tomography and low field MRI findings pre- and postoperatively were described and graded. Clinical, CT and MRI examinations were performed four to 18 months after surgery...
January 17, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28087395/lumbar-spinal-muscles-and-spinal-canal-study-by-mri-three-dimensional-reconstruction-in-adult-lumbar-spinal-stenosis
#3
Louis Boissière, Bertrand Moal, Olivier Gille, Elise De-Roquefeuil, Muriel Durieux, Ibrahim Obeid, Vincent Dousset, Jean-Marc Vital, Wafa Skalli
BACKGROUND: Lumbar spinal stenosis is degenerative disc disease most common manifestation. If stenosis degree seems poorly related to symptom severity, lumbar muscles role is recognized. Many studies report imaging methods, to analyze muscle volumes and fat infiltration (FI), but remain limited due to the difficulty to represent entire muscle volume variability. Recently a 3D muscle reconstruction protocol (using the deformation of a parametric specific object method (DPSO) and three point Dixon images) was reported...
January 10, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28075034/abdominal-lean-muscle-is-associated-with-lower-mortality-among-kidney-waitlist-candidates
#4
Jayme E Locke, J Jeff Carr, Sangeeta Nair, James G Terry, Rhiannon D Reed, Grant D Smith, Dorry L Segev, Vineeta Kumar, Cora E Lewis
Morphometric assessments, such as muscle density and body fat distribution, have emerged as strong predictors of cardiovascular risk and post-operative morbidity and mortality. To date, no study has examined morphometric mortality risk prediction among kidney transplant (KT) candidates. KT candidates, waitlisted 2008-2009 were identified (n=96) and followed to the earliest of transplant, death, or administrative end of study. Morphometric measures, including abdominal adipose tissue, paraspinous and psoas muscle composition, and aortic calcification were measured from CTs...
January 11, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28059685/resolution-of-the-more-anteriorly-positioned-psoas-muscle-following-correction-of-spinal-sagittal-alignment-from-spondylolisthesis-case-report
#5
Hasan R Syed, Kurt Yaeger, Faheem A Sandhu
Several studies have described the radiographic, histological, and morphological changes to the paraspinal muscle in patients with chronic low-back pain due to degenerative diseases of the spine. Gross anatomical illustrations have shown that the psoas muscle lies lateral to the L4-5 vertebrae and subsequently thins and dissociates from the vertebral body at L5-S1 in a ventrolateral course. A "rising psoas" may influence the location of the lumbar plexus and result in transient neurological injury on lateral approach to the spine...
January 6, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28047736/su-f-p-42-to-navigate-or-not-to-navigate-hdr-bt-in-recurrent-spine-lesions
#6
L Voros, G Cohen, M Zaider, Y Yamada
PURPOSE: We compare the accuracy of HDR catheter placement for paraspinal lesions using O-arm CBCT imaging combined with StealthStation navigation and traditional fluoroscopically guided catheter placement. METHODS: CT and MRI scans were acquired pre-treatment to outline the lesions and design treatment plans (pre-plans) to meet dosimetric constrains. The pre-planned catheter trajectories were transferred into the StealthStation Navigation system prior to the surgery...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28043447/immediate-spinal-cord-collateral-blood-flow-during-thoracic-aortic-procedures-the-role-of-epidural-arcades
#7
Fabian A Kari, Karin Wittmann, Babak Saravi, Luisa Puttfarcken, Sonja Krause, Katharina Förster, Sven Maier, Ulrich Göbel, Friedhelm Beyersdorf
The objective of this study was to investigate the functional differences between paraspinal and intraspinal compartments of the spinal collateral network and the importance of circular epidural arcades in thoracic aortic surgery. N = 33 pigs (mean body weight: 34 ± 3kg) were included. A single-inlet-model of spinal collateral flow was created: paraspinal inflow into the collateral network was isolated by cephalad and caudal interruption of inflow into epidural arcades using laminectomies. Animals were assigned to treatment groups (Treatment "open" [patent epidural arcades, n = 10] and Treatment "closed" [closed epidural arcades, n = 10]) and Sham groups (Sham "open" n = 8 and Sham "closed" n = 5)...
July 2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28042344/noninvasive-imaging-of-myocardial-inflammation-in-myocarditis-using-68-ga-tagged-mannosylated-human-serum-albumin-positron-emission-tomography
#8
Seung-Pyo Lee, Hyung-Jun Im, Shinae Kang, Seock-Jin Chung, Ye Seul Cho, Hyejeong Kang, Ho Seon Park, Do-Won Hwang, Jun-Bean Park, Jin-Chul Paeng, Gi-Jeong Cheon, Yun-Sang Lee, Jae Min Jeong, Yong-Jin Kim
The diagnosis of myocarditis traditionally relies on invasive endomyocardial biopsy but none of the imaging studies so far are specific for infiltration of the inflammatory cells itself. We synthesized (68)Ga-2-(p-isothiocyanatobenzyl)-1,4,7-triazacyclononane-1,4,7-triacetic acid (NOTA) mannosylated human serum albumin (MSA) by conjugating human serum albumin with mannose, followed by conjugation with NOTA and labeling it with (68)Ga. The efficacy of (68)Ga-NOTA-MSA positron emission tomography (PET) for imaging myocardial inflammation was tested in a rat myocarditis model...
2017: Theranostics
https://www.readbyqxmd.com/read/28032299/new-mutations-and-genotype-phenotype-correlation-in-late-onset-pompe-patients
#9
Can Ebru Bekircan-Kurt, Hafize Nalan Güneş, F Gokcem Yildiz, Esen Saka, Ersin Tan, Sevim Erdem-Özdamar
Pompe disease is a glycogen storage disease caused by acid alfa-glucosidase deficiency. Here, we report clinical properties, genetic features of our late-onset Pompe patients. Seven patients were followed during the last 10 years in our institute. The clinical and laboratory findings were reviewed. Neuropsychological evaluation was performed in four patients. Myotonic discharges of paraspinal muscles and denervation potentials were seen in all patients at the diagnosis and were disappeared during follow-up in two...
December 28, 2016: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28031520/acute-calcification-of-intervertebral-disc-and-posterior-longitudinal-ligament-in-a-7-year-old-girl-a-case-report
#10
Churk Hang Li, Tun Hing Lui, Wai Kit Ngai
A 7-year-old girl presented with a 2-day history of acute neck pain without any preceding injury. The pain was around the left posterior paraspinal muscle and was aggravated by neck movement. There was no neurological abnormality; white cell count and inflammatory markers were slightly elevated. Radiology of the cervical spine showed calcification of C3/4 and C4/5 discs as well as the posterior longitudinal ligament over C3/4. She was treated conservatively with a neck collar and Panadol syrup. No non-steroidal anti-inflammatory drug was prescribed...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28031094/determinants-of-detection-of-stones-and-calcifications-in-the-hepatobiliary-system-on-virtual-nonenhanced-dual-energy-ct
#11
Da-Ming Zhang, Xuan Wang, Hua-Dan Xue, Zheng-Yu Jin, Hao Sun, Yu Chen, Yong-Lan He
Objective To retrospectively determine the features of stones and calcifications in hepatobiliary system on virtual nonenhanced (VNE) dual-energy computed tomography (CT), and to evaluate the possibility of VNE images in diagnosis for those lesions.Methods A total of 128 gall stones and calcifications of the liver found in 110 patients were examined with triple phase abdominal CT scan from July 2007 to December 2011, in which true nonenhanced (TNE) phase and arterial phase were performed with single-energy CT (120 kVp) and portal venous phase was performed with dual-energy CT (100 kVp and 140 kVp)...
June 20, 2016: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/28027734/prevalence-and-characteristics-of-intravertebral-enhancement-on-contrast-enhanced-ct-scans-in-cancer-patients
#12
Benjamin Rasselet, Ahmed Larbi, Pierre Viala, Nicolas Molinari, Raphael Tetreau, Marie Faruch-Bilfeld, Patrice Taourel, Catherine Cyteval
STUDY DESIGN: This was a single center, retrospective observational study. OBJECTIVE: to investigate-in a cancer population-the prevalence and hallmarks of intravertebral enhancement (IVE) detected on contrast-enhanced CT. SUMMARY OF BACKGROUND DATA: Intravertebral enhancements secondary to iodinated contrast stagnation have been described. Cancer patients have an increased risk of perivertebral venous thrombosis or stenosis secondary to several risk factors (cancer or drug induced hypercoagulability, deterioration of venous flow linked to catheter insertion, prolonged immobilization)...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28017240/focal-muscle-vibration-an-effective-rehabilitative-approach-in-severe-gait-impairment-due-to-multiple-sclerosis
#13
F Camerota, C Celletti, E Di Sipio, C De Fino, C Simbolotti, M Germanotta, M Mirabella, L Padua, V Nociti
Gait impairment is one of the most frequent and life-altering consequences of Multiple sclerosis (MS), frequently associated with lower limb spasticity. Focal muscle vibration (fMV) is a technique that applies a vibratory stimulus to a specific muscle or its tendon, reducing spasticity. The aim of our study is to evaluate the efficacy of fMV in ameliorating gait impairment in MS patients with severe lower limb spasticity, measured by Gait Analysis (GA) and objective and patient-oriented scales scores. Fourteen patients affected by Secondary Progressive MS (SPMS) with a lower limb spasticity with a low or no response to antispastic drugs, received repetitive fMV (r-fMV) over the quadriceps and the lumbar paraspinal muscles...
January 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28000006/mri-as-outcome-measure-in-facioscapulohumeral-muscular-dystrophy-1-year-follow-up-of-45-patients
#14
Grete Andersen, Julia R Dahlqvist, Christoffer R Vissing, Karen Heje, Carsten Thomsen, John Vissing
There is no effective treatment available for facioscapulohumeral muscular dystrophy type 1 (FSHD1), but emerging therapies are under way that call for a better understanding of natural history in this condition. In this prospective, longitudinal study, we used quantitative MRI to assess yearly disease progression in patients with FSHD1. Ambulatory patients with confirmed diagnosis of FSHD1 (25/20 men/women, age 20-75 years, FSHD score: 0-12) were tested with 359-560-day interval between tests. Using the MRI Dixon technique, muscle fat replacement was evaluated in paraspinal, thigh, and calf muscles...
December 20, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27999873/spinal-osteoid-osteoma-progressed-to-osteoblastoma-with-paraspinal-soft-tissue-mass-a-unique-presentation
#15
Michalis Michaelides, Maria Pantziara, Elia Petridou, Efrosini Iacovou, Cleanthis Ioannides
Osteoid osteoma and osteoblastoma are rare benign bone-forming tumors with very similar histological features. They are nowadays considered as two distinct entities. Progression of an osteoid osteoma to osteoblastoma is considered very rare with only a few cases reported in the literature. Herein we describe a case of an osteoid osteoma of the thoracic spine in a 29-year-old woman that was initially treated conservatively and progressed to osteoblastoma 5 years following the initial diagnosis. Imaging revealed an increase in the size of the spinal lesion that was surrounded by extensive paraspinal abnormal soft tissue that raised suspicion for sarcomatous transformation...
December 20, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27999715/secretory-paraspinal-paraganglioma-of-thoracolumar-spine-case-report-and-review-of-literature
#16
Saad Akhtar, Sidra Sattar, Ehsan Bari, Naila Kayani, Sarosh Moeen
BACKGROUND: Pheochromocytomas are catecholamine secreting tumors of the adrenal medulla chromaffin cells, however, when present extra-adrenally they are called paragangliomas. Paragangliomas rarely produce catecholamine in excess, which is evident by clinical symptoms, urine, and blood biochemistry. Total resection of these tumors can lead to complete clinical and biochemical resolution. This case report presents the clinical features, radiological findings, and neurological outcome in a middle-aged female with a secretory paraganglioma...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27977444/outcome-of-decompression-alone-for-foraminal-extraforaminal-entrapment-of-l5-nerve-root-through-wiltse-paraspinal-approach
#17
Kyung-Chul Choi, Jin-Sung Kim, Dong Chan Lee, Choon-Keun Park
STUDY DESIGN: Retrospective analysis. OBJECTIVE OF THE STUDY: The objective of the study was to present the surgical outcome and analyze the prognostic factors for postoperative leg pain after posterior decompression alone for foraminal/extraforaminal L5 entrapment at L5-S1 segment (LSS). SUMMARY OF BACKGROUND DATA: Disk extrusion, hypertrophy of facet joint, osteophyte of vertebral body, thickened lumbosacral ligament, and collapsed disk lead to form the lumbosacral tunnel which compresses the L5 exiting nerve root...
December 13, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27956463/internal-comparison-standard-for-abdominal-diffusion-weighted-imaging
#18
Zafer Koc, Gurcan Erbay, Elif Karadeli
BACKGROUND: Standards for abdominal diffusion-weighted imaging (DWI), apparent diffusion coefficient (ADC) measurements, and analysis are required for reproducibility. PURPOSE: To identify optimal internal comparison standards for DWI to normalize the measured ADC for increased accuracy of differentiating malignant and benign abdominal lesions. MATERIAL AND METHODS: We retrospectively studied 97 lesions (89 patients; age, 57 ± 13 years) with histopathologically confirmed abdominal disease...
December 12, 2016: Acta Radiologica
https://www.readbyqxmd.com/read/27935076/electrophysiologically-identified-piriformis-syndrome-is-successfully-treated-with-incobotulinum-toxin-a-and-physical-therapy
#19
Loren M Fishman, Allen N Wilkins, Bernard Rosner
INTRODUCTION: Piriformis syndrome is entrapment of the sciatic nerve by the piriformis muscle. METHODS: 56-person randomized, double-blinded, controlled study involving physical therapy and incobotulinum toxin A or placebo. INCLUSION CRITERIA: 3 standard deviation delay of posterior tibial (PT) or fibular FN) H-reflexes in flexion, adduction and internal rotation (FAIR-test), and normal paraspinal EMG. OUTCOME MEASURES: adverse side-effects, visual analogue scale (VAS), H-reflex delay in FAIR-test...
December 9, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/27920864/clinical-case-report-discitis-osteomyelitis-complicated-by-inferior-vena-cava-venous-thrombosis-and-septic-pulmonary-emboli
#20
Zerwa Farooq, Brooke Devenney-Cakir
Viridans group streptococcus is an infrequent cause of osteomyelitis that is found in association with infective endocarditis. Only a few studies report viridans osteomyelitis in the absence of endocarditis. Vertebral pyogenic osteomyelitis can sometimes be complicated by psoas or paraspinal abscesses. These intra-abdominal and/or pelvic collections can very rarely result in venous thrombosis. A paraspinal abscess resulting in inferior vena cava (IVC) thrombosis has only been reported once in the literature...
December 2016: Radiology case reports
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