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https://www.readbyqxmd.com/read/29928207/malignant-transformation-of-nodular-hidradenoma-in-the-lower-leg
#1
Nhuan Ngo, Michiro Susa, Takahiro Nakagawa, Yo Kawahara, Chiaki Sato, Keisuke Horiuchi, Fumihisa Kumazawa, Hideyuki Shimazaki, Ukei Anazawa, Kazuhiro Chiba
Nodular hidradenoma (NH) is a benign adnexal tumor that arises from either eccrine or apocrine sweat glands. NH can originate from any cutaneous site, but the most common sites are the head and anterior surface of the trunk, with very rare cases in the extremities. Long-standing NH has been reported to undergo malignant transformation to malignant NH (MNH); however, its occurrence in the lower leg is extremely rare with only one other case reported to date. In this report, we present a rare case of MNH occurring in the lower leg which was resected with the intent to make a diagnosis...
May 2018: Case Reports in Oncology
https://www.readbyqxmd.com/read/29926743/automatic-cartilage-segmentation-for-delayed-gadolinium-enhanced-magnetic-resonance-imaging-of-hip-joint-cartilage-a-feasibility-study
#2
Tobias Hesper, Bernd Bittersohl, Christoph Schleich, Harish Hosalkar, Rüdiger Krauspe, Peter Krekel, Christoph Zilkens
Objective Automatic segmentation for biochemical cartilage evaluation holds promise for an efficient and reader-independent analysis. This pilot study aims to investigate the feasibility and to compare delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) hip joint assessment with manual segmentation of acetabular and femoral head cartilage and dGEMRIC hip joint assessment using automatic surface and volume processing software at 3 Tesla. Design Three-dimensional (3D) dGEMRIC data sets of 6 patients with hip-related pathology were assessed (1) manually including multiplanar image reformatting and regions of interest (ROI) analysis and (2) automated by using a combined surface and volume processing software...
June 1, 2018: Cartilage
https://www.readbyqxmd.com/read/29925164/-feasibility-study-of-cone-beam-ct-in-displaying-facial-nerve-canal
#3
Z Y Zhang, G X Yin, Z C Wang, Z Wang, J Li
Objective: To evaluate the image clarity of cone-beam computed tomography (CBCT) in displaying facial nerve canal and to investigate the feasibility of CBCT to display facial nerve canal and whether there are some advantages compared with MSCT. Methods: Eight cadaveric heads were scanned using CBCT and MSCT and images of 16 temporal bones of each scanner were obtained.The imaging clarity of facial nerve canal of the two scanners was scored. Wilcoxon test was used to assess the difference of the two methods...
June 19, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29922891/is-combined-mechanism-glaucoma-a-distinct-entity
#4
Ramanjit Sihota, Sailesh Kumar, Talvir Sidhu, Neha Midha, Ajay Sharma, Suresh Yadav, Viney Gupta, Tanuj Dada
PURPOSE: Primary adult glaucomas that have an occludable angle with peripheral anterior synechiae which are too few to account for the chronically raised IOP, or the glaucomatous optic neuropathy, do not fit the definition of either POAG or PACG and can be considered as combined mechanism glaucoma (CMG). We aimed to compare the clinical features and anatomical parameters of combined mechanism glaucoma with age, sex, and refraction-matched POAG and chronic PACG eyes. METHODS: Consecutive adult patients with definitive optic nerve head and perimetric changes of glaucoma were screened at a tertiary care center...
June 20, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29921712/anterior-thalamic-excitation-and-feed-forward-inhibition-of-presubicular-neurons-projecting-to-medial-entorhinal-cortex
#5
Mérie Nassar, Jean Simonnet, Li-Wen Huang, Bertrand Mathon, Ivan Cohen, Michael H K Bendels, Mathieu Beraneck, Richard Miles, Desdemona Fricker
The presubiculum contains head direction cells that are crucial for spatial orientation. Here, we examined the connectivity and strengths of thalamic inputs to presubicular layer 3 neurons projecting to the medial entorhinal cortex in the mouse. We recorded pairs of projection neurons and interneurons while optogenetically stimulating afferent fibers from the anterior thalamic nuclei (ATN). Thalamic input differentially affects presubicular neurons: layer 3 pyramidal neurons and fast-spiking parvalbumin expressing (PV) interneurons are directly and monosynaptically activated, with depressing dynamics, while somatostatin (SST) expressing interneurons are indirectly excited, during repetitive ATN activity...
June 19, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29917006/docking-of-the-femoral-head-following-closed-reduction-for-ddh-does-it-really-occur
#6
Nakul S Talathi, Nancy A Chauvin, Wudbhav N Sankar
BACKGROUND: It has been suggested that the femoral head can "dock" deeper into the acetabulum after initial closed reduction (CR) for developmental dysplasia of the hip (DDH). The purpose of this study was to quantify the interval change in femoral head position between immediate postoperative magnetic resonance imaging (MRI) and follow-up imaging at ~3 weeks. METHODS: A retrospective review of 29 patients (30 hips) who underwent CR and spica casting for DDH was conducted...
June 18, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29911429/lamina-cribrosa-position-and-bruch-s-membrane-opening-differences-between-anterior-ischemic-optic-neuropathy-and-open-angle-glaucoma
#7
Gema Rebolleda, Ane Pérez-Sarriegui, Laura Díez-Álvarez, Victoria De Juan, Francisco J Muñoz-Negrete
PURPOSE: To compare the optic nerve head morphology among primary open-angle glaucoma, non-arteritic anterior ischemic optic neuropathy eyes, their fellow healthy eyes and control eyes, using spectral-domain optical coherence tomography with enhanced depth imaging. METHODS: Observational cross-sectional study including 88 eyes of 68 patients. In this study, 23 non-arteritic anterior ischemic optic neuropathy eyes, 17 fellow unaffected eyes, 25 primary open-angle glaucoma eyes, and 23 age-matched control eyes were included...
June 1, 2018: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29911066/the-evaluation-and-clinical-efficiency-of-power-scope-an-original-research
#8
Tony Antony, Vivek Amin, Shourya Hegde, Shreya Hegde, Deepa Shetty, Mohammadi Begum Khan
Aims and Objectives: Managing mild-to-moderate Class II malocclusion is one of the common and major challenges to orthodontists. Class II discrepancies with mandibular deficiency during active growth are usually treated using myofunctional appliances. Fixed functional appliances evolved due to the noncompliance with conventional myofunctional appliances. One of the latest Class II correctors is the PowerScope appliance. The purpose of this study was to determine the amount, time, and rate of molar correction and efficacy of PowerScope...
May 2018: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29910331/a-new-approach-to-emg-analysis-of-closed-circuit-movements-such-as-the-flat-bench-press
#9
Artur Golas, Adam Maszczyk, Petr Stastny, Michal Wilk, Krzysztof Ficek, Robert George Lockie, Adam Zajac
BACKGROUND: The bench press (BP) is a complex exercise demanding high neuromuscular activity. Therefore, the main objective of this study was to identify the patterns of muscular activity of the prime movers on both sides of an elite powerlifter. METHODS: A World Champion (RAW PR 320 kg) participated in the study (age: 34 years; body mass: 103 kg; body height 1.72 m; one-repetition maximum (1 RM) flat bench press: 220 kg). The subject performed one repetition of the flat bench press with: 70% 1 RM (150 kg) and 90% 1 RM (200 kg) in tempos: 2 s eccentric and 1 s concentric phase; 6 s eccentric and 1 s concentric phase)...
March 28, 2018: Sports
https://www.readbyqxmd.com/read/29909465/anteromedial-femoral-neck-plate-with-cannulated-screws-for-the-treatment-of-irreducible-displaced-femoral-neck-fracture-in-young-patients-a-preliminary-study
#10
Linbo Zhuang, Lisheng Wang, Dongming Xu, Zhiyong Wang
BACKGROUNDS: Although most displaced femoral neck fractures of young patients can be repositioned successfully by closed reduction, there are still some can not repositioned successfully by this way and open reductions are required. This type of fracture was defined as irreducible displaced femoral neck fracture in this study. The purpose of this study was to introduce a new technique using anteromedial femoral neck plate with cannulated screws fixation by open reduction for the treatment of irreducible displaced femoral neck fractures in young patients...
June 16, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29909353/effect-of-sound-level-on-virtual-and-free-field-localization-of-brief-sounds-in-the-anterior-median-plane
#11
Frederic Marmel, Miriam I Marrufo-Pérez, Jan Heeren, Stephan Ewert, Enrique A Lopez-Poveda
The detection of high-frequency spectral notches has been shown to be worse at 70-80 dB sound pressure level (SPL) than at higher levels up to 100 dB SPL. The performance improvement at levels higher than 70-80 dB SPL has been related to an 'ideal observer' comparison of population auditory nerve spike trains to stimuli with and without high-frequency spectral notches. Insofar as vertical localization partly relies on information provided by pinna-based high-frequency spectral notches, we hypothesized that localization would be worse at 70-80 dB SPL than at higher levels...
June 14, 2018: Hearing Research
https://www.readbyqxmd.com/read/29909185/accuracy-of-smartphone-based-evaluation-of-emergent-large-vessel-occlusion-on-cta
#12
Douglas T Hidlay, Ryan A McTaggart, Grayson Baird, Shadi Yaghi, Morgan Hemendinger, Eric L Tung, Eleanor L Dibiasio, Richard A Haas, Mahesh V Jayaraman
OBJECTIVES: Mechanical thrombectomy is the standard of care for stroke caused by an emergent large vessel occlusion in the anterior circulation, and the ability to rapidly review CTA is one hurdle in minimizing the time from diagnosis to intervention. We evaluated the diagnostic accuracy and confidence in review of stroke CTA for ELVO via a smartphone-based application as compared to PACS workstation. PATIENTS AND METHODS: Seventy-six head and neck CTA studies performed for stroke from one comprehensive and seven primary stroke centers were independently reviewed remotely on smartphone by two blinded interventional neuroradiologists in actual-use circumstances...
June 11, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29908866/oral-propranolol-in-a-child-with-infantile-hemangioma-of-the-urethra
#13
Toshihiko Itesako, Rumiko Eura, Yasuhiro Okamoto, Shuichi Tatarano, Hirofumi Yoshino, Hiroaki Nishimura, Yasutoshi Yamada, Hideki Enokida, Masayuki Nakagawa
Infantile hemangiomas (IH) are the most common in the head and neck region.1 They can occur anywhere in the skin, however, urethral hemangiomas are very rare. We describe a case report of a three years old boy with extensive lesions of IH in the anterior urethra. Urethral IH were disappeared during one year of oral administration of propranolol though it brought on urinary retention. This is the first report about oral propranolol treatment in a child with urethral IH. Oral administration of propranolol may be effective for urethral IH and beneficial especially for lesions requiring extensive surgical resection and reconstruction...
June 14, 2018: Urology
https://www.readbyqxmd.com/read/29908759/cutibacterium-acnes-and-the-shoulder-microbiome
#14
Boyang Qiu, Kait Al, Ana M Pena-Diaz, George S Athwal, Darren Drosdowech, Kenneth J Faber, Jeremy P Burton, David B O'Gorman
BACKGROUND: Advances in DNA sequencing technologies have made it possible to detect microbial genome sequences (microbiomes) within tissues once thought to be sterile. We used this approach to gain insights into the likely sources of Cutibacterium acnes (formerly Propionibacterium acnes) infections within the shoulder. METHODS: Tissue samples were collected from the skin, subcutaneous fat, anterior supraspinatus tendon, middle glenohumeral ligament, and humeral head cartilage of 23 patients (14 male and 9 female patients) during primary arthroplasty surgery...
June 13, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29902185/body-mass-index-and-waist-circumference-in-early-adulthood-are-associated-with-thoracolumbar-spine-shape-at-age-60-64-the-medical-research-council-national-survey-of-health-and-development
#15
Anastasia V Pavlova, Stella G Muthuri, Rachel Cooper, Fiona R Saunders, Jennifer S Gregory, Rebecca J Barr, Kathryn R Martin, Judith E Adams, Diana Kuh, Rebecca J Hardy, Richard M Aspden
This study investigated associations between measures of adiposity from age 36 and spine shape at 60-64 years. Thoracolumbar spine shape was characterised using statistical shape modelling on lateral dual-energy x-ray absorptiometry images of the spine from 1529 participants of the MRC National Survey of Health and Development, acquired at age 60-64. Associations of spine shape modes with: 1) contemporaneous measures of total and central adiposity (body mass index (BMI), waist circumference (WC)) and body composition (android:gynoid fat mass ratio and lean and fat mass indices, calculated as whole body (excluding the head) lean or fat mass (kg) divided by height2 (m)2); 2) changes in total and central adiposity between age 36 and 60-64 and 3) age at onset of overweight, were tested using linear regression models...
2018: PloS One
https://www.readbyqxmd.com/read/29901576/anterior-interhemispheric-approach-for-removing-large-sellar-region-tumor
#16
Shi-Yu Feng, Tao Zhou, Zheng-Hui Sun, Bo Bu, Jin-Li Jiang
The aim of the study was to explore anterior interhemispheric approach microsurgery for removing large sellar region tumors.A total of 118 patients with large sellar region tumors were treated with the anterior interhemispheric approach microsurgery. There were 58 craniopharyngioma, 37 pituitary adenoma, 5 hypothalamic glioma, 7 meningioma, and 11 other tumors cases. The maximal tumor diameter ranged from 3.0 to 8.2 cm, with a mean diameter of 4.3 cm. Diabetes insipidus and fluid and electrolyte imbalance were timely controlled after surgery...
June 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29900546/role-of-mekk1-in-the-anterior-posterior-patterning-during-planarian-regeneration
#17
Kazutaka Hosoda, Minako Motoishi, Takuya Kunimoto, Osamu Nishimura, Byulnim Hwang, Sumire Kobayashi, Shigenobu Yazawa, Makoto Mochii, Kiyokazu Agata, Yoshihiko Umesono
Planarians have established a unique body pattern along the anterior-posterior (AP) axis, which consists of at least four distinct body regions arranged in an anterior to posterior sequence: head, prepharyngeal, pharyngeal (containing a pharynx), and tail regions, and possess high regenerative ability. How they reconstruct the regional continuity in a head-to-tail sequence after amputation still remains unknown. We use as a model planarian Dugesia japonica head regeneration from tail fragments, which involves dynamic rearrangement of the body regionality of preexisting tail tissues along the AP axis, and show here that RNA interference of the gene D...
June 13, 2018: Development, Growth & Differentiation
https://www.readbyqxmd.com/read/29895990/finite-element-stress-analysis-of-keyhole-plate-system-in-sagittal-split-ramus-osteotomy
#18
Ju-Won Kim, Kang-Nam Park, Chang-Hyeon Lee, Yong-Su Kim, Young-Hee Kim, Byoung-Eun Yang
A new miniplate applied differently from conventional application method for bone fixation has been developed. The novel approach is the insertion of the screw into the bone before miniplate installation. This study aimed to assess the stress distribution of a newly designed Yang's Keyhole (YK)- plate for segmental-bone fixation during sagittal split ramus osteotomy (SSO). Moreover, the effectiveness of the YK-plate system based on the clinical results was determined. The YK-plate system has a widened hole in the anterior region to permit a screw-head to be screwed through the system...
June 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29894369/arthrodiastasis-followed-by-open-reduction-associated-with-pelvic-and-femoral-osteotomies-for-the-treatment-of-high-inveterate-congenital-hip-dislocation
#19
Pedro Gutiérrez Carbonell
Our purpose is to analyze results, following the use of arthrodiastasis for the treatment of inveterate congenital hip dislocations. The study included eight patients. The mean age was 6 years. Three (37.5%) were male patients, and five (62.5%) were female patients. The patients were followed-up for 46 months. Teratologic, neurologic, rheumatic, and syndrome-associated dislocations were excluded. The following scores were used: Harris Hip Score, displacement of femoral head with respect to Hilgenreiner's line, Acetabular index, Wiberg angle, Reimer's extrusion index, and leg length discrepancy...
June 11, 2018: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/29893589/sport-field-properties-influence-muscle-recruitment-patterns-and-metabolic-response
#20
Michael E Hales, John D Johnson
PURPOSE: The study investigated different sport field properties influence on muscular recruitment patterns and metabolic response during a series of running and agility drills. METHODS: Eleven male athletes were fitted with a standard multi-purpose training shoe. The test protocol consisting of four high-intensity trials with 60 seconds rest between trials performed on two fields with different properties. Time-dependent field properties were recorded using ASTM protocol (F-1936)...
June 12, 2018: International Journal of Sports Physiology and Performance
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