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https://www.readbyqxmd.com/read/28641322/scuba-diving-and-otology-a-systematic-review-with-recommendations-on-diagnosis-treatment-and-post-operative-care
#1
REVIEW
Devon M Livingstone, Kristine A Smith, Beth Lange
Scuba diving is a popular recreational and professional activity with inherent risks. Complications related to barotrauma and decompression illness can pose significant morbidity to a diver's hearing and balance systems. The majority of dive-related injuries affect the head and neck, particularly the outer, middle and inner ear. Given the high incidence of otologic complications from diving, an evidence-based approach to the diagnosis and treatment of otic pathology is a necessity. We performed a systematic and comprehensive literature review including the pathophysiology, diagnosis, and treatment of otologic pathology related to diving...
June 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/28640803/brain-network-eigenmodes-provide-a-robust-and-compact-representation-of-the-structural-connectome-in-health-and-disease
#2
Maxwell B Wang, Julia P Owen, Pratik Mukherjee, Ashish Raj
Recent research has demonstrated the use of the structural connectome as a powerful tool to characterize the network architecture of the brain and potentially generate biomarkers for neurologic and psychiatric disorders. In particular, the anatomic embedding of the edges of the cerebral graph have been postulated to elucidate the relative importance of white matter tracts to the overall network connectivity, explaining the varying effects of localized white matter pathology on cognition and behavior. Here, we demonstrate the use of a linear diffusion model to quantify the impact of these perturbations on brain connectivity...
June 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28636260/lichenoid-keratosis-is-frequently-misdiagnosed-as-basal-cell-carcinoma
#3
D Maor, C Ondhia, L L Yu, J J Chan
Lichenoid keratosis (LK), also known as benign lichenoid keratosis or lichen planus-like keratosis, is a solitary, pink to red-brown scaly plaque representing a host immunological response to a variety of precursor lesions. LK is often misdiagnosed as a dermatological malignancy owing to its clinical resemblance to basal cell carcinoma (BCC) or Bowen disease. We performed a retrospective analysis of the pathology records of a series of LK lesions with reference to the demographic features and accuracy of clinical diagnosis...
June 21, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28635993/head-and-neck-vascular-anomalies-a-multidisciplinary-approach-and-diagnostic-criteria
#4
L Moneghini, V Sangiorgio, D Tosi, G Colletti, F Melchiorre, V Baraldini, D Graziani, R M Alfano, G Vercellio, G Bulfamante
Vascular anomalies represent a heterogeneous group of pathologies of the circulatory system that can affect any type of hematic and /or lymphatic vessel of different diameter or anatomic site. The extreme variability of tissue types and districts involved by these lesions determines a wide heterogeneity of clinical manifestations, resulting in involvement of different medical expertise. In this context, a commonly agreed terminology is crucial for the appropriate evaluation and multidisciplinary management of patients...
March 2017: Pathologica
https://www.readbyqxmd.com/read/28635989/sinonasal-tumor-pathology-what-s-new
#5
A Franchi
The sinonasal tract is an anatomical region affected by a wide variety of tumors with different clinical behavior, histologic and molecular features. Substantial advances have been made in the field of sinonasal tumor pathology in recent years, including improvement in the diagnosis, treatment and genetic characterization. In this article, a review of the histological features of new distinctive pathologic entities as well as newly described molecular alterations of these rare tumors is presented.
March 2017: Pathologica
https://www.readbyqxmd.com/read/28634521/a-review-of-echocardiograms-in-hypertensive-patients-greater-than-60-years-in-a-community-based-family-medicine-program
#6
Shideh Doroudi, Michael D DeLisi, Vincent A DeBari
Background: Heart disease as a result of Hypertension is known to occur. Anatomical and functional changes of the heart can easily be detected by echocardiography, which is a safe and readily available study. Objectives: The aims of this study were to evaluate the prevalence of common echocardiographic changes in chronic hypertensive patients and to compare these changes in male and female populations. Design/methods: The study was a community-based cross-sectional study, on 227 hypertensive patients, 60 years and older, seen in St...
January 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28632604/reassessing-the-anatomic-origin-of-the-juvenile-nasopharyngeal-angiofibroma
#7
Colin D McKnight, Hemant A Parmar, Kuanwong Watcharotone, Suresh K Mukherji
OBJECTIVE: A modern imaging review is necessary to further define the anatomic origin of the juvenile nasopharyngeal angiofibroma. METHODS: After institutional review board approval, a search from January 1998 to January 2013 yielded 33 male patients (aged 10-23 years) with pathologically proven juvenile nasopharyngeal angiofibroma lesions, as well as pretreatment computed tomography/magnetic resonance imaging. Juvenile nasopharyngeal angiofibroma involvement was assessed in the following regions: sphenopalatine foramen, pterygopalatine fossa, vidian canal, nasopharynx, nasal cavity, sphenoid sinus, choana, pterygomaxillary fissure/masticator space, orbit, and sphenoid bone...
June 20, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28631297/an-augmented-reality-tool-for-learning-spatial-anatomy-on-mobile-devices
#8
Nishant Jain, Patricia Youngblood, Matthew Hasel, Sakti Srivastava
INTRODUCTION: Augmented Realty (AR) offers a novel method of blending virtual and real anatomy for intuitive spatial learning. Our first aim in the study was to create a prototype AR tool for mobile devices. Our second aim was to complete a technical evaluation of our prototype AR tool focused on measuring the system's ability to accurately render digital content in the real world. MATERIALS AND METHODS: We imported Computed Tomography (CT) data derived virtual surface models into a 3D Unity engine environment and implemented an AR algorithm to display these on mobile devices...
June 20, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28629404/white-matter-lesions-characterise-brain-involvement-in-moderate-to-severe-chronic-obstructive-pulmonary-disease-but-cerebral-atrophy-does-not
#9
Catherine A Spilling, Paul W Jones, James W Dodd, Thomas R Barrick
BACKGROUND: Brain pathology is relatively unexplored in chronic obstructive pulmonary disease (COPD). This study is a comprehensive investigation of grey matter (GM) and white matter (WM) changes and how these relate to disease severity and cognitive function. METHODS: T1-weighted and fluid-attenuated inversion recovery images were acquired for 31 stable COPD patients (FEV1 52.1% pred., PaO2 10.1 kPa) and 24 age, gender-matched controls. T1-weighted images were segmented into GM, WM and cerebrospinal fluid (CSF) tissue classes using a semi-automated procedure optimised for use with this cohort...
June 19, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28627379/microvascular-changes-in-down-syndrome-with-alzheimer-type-pathology-insights-into-a-potential-vascular-mechanism-for-down-syndrome-and-alzheimer-s-disease
#10
David A Drachman, Thomas W Smith, Bassam Alkamachi, Kevin Kane
INTRODUCTION: The mechanism triggering degeneration in Alzheimer's disease (AD) remains uncertain. Therapeutic failure following β amyloid (Aβ) removal casts doubt on amyloid neurotoxicity per se as the primary cause of AD. Impaired microvascular function has been suggested as an alternative etiology. People with Down syndrome (DS) develop Alzheimer pathology, but whether microvascular impairment also occurs in DS (as in AD) is unknown. METHODS: We examined brain microvasculature in five DS subjects with AD-type histopathology, seven AD cases, and seven controls without AD-type pathology...
June 13, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28624961/phenotypic-and-functional-characterization-of-t-cells-in-white-matter-lesions-of-multiple-sclerosis-patients
#11
Gijsbert P van Nierop, Marvin M van Luijn, Samira S Michels, Marie-Jose Melief, Malou Janssen, Anton W Langerak, Werner J D Ouwendijk, Rogier Q Hintzen, Georges M G M Verjans
T cells are considered pivotal in the pathology of multiple sclerosis (MS), but their function and antigen specificity are unknown. To unravel the role of T cells in MS pathology, we performed a comprehensive analysis on T cells recovered from paired blood, cerebrospinal fluid (CSF), normal-appearing white matter (NAWM) and white matter lesions (WML) from 27 MS patients with advanced disease shortly after death. The differentiation status of T cells in these compartments was determined by ex vivo flow cytometry and immunohistochemistry...
June 17, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28623901/biomarker-correlation-network-in-colorectal-carcinoma-by-tumor-anatomic-location
#12
Reiko Nishihara, Kimberly Glass, Kosuke Mima, Tsuyoshi Hamada, Jonathan A Nowak, Zhi Rong Qian, Peter Kraft, Edward L Giovannucci, Charles S Fuchs, Andrew T Chan, John Quackenbush, Shuji Ogino, Jukka-Pekka Onnela
BACKGROUND: Colorectal carcinoma evolves through a multitude of molecular events including somatic mutations, epigenetic alterations, and aberrant protein expression, influenced by host immune reactions. One way to interrogate the complex carcinogenic process and interactions between aberrant events is to model a biomarker correlation network. Such a network analysis integrates multidimensional tumor biomarker data to identify key molecular events and pathways that are central to an underlying biological process...
June 17, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28623460/spreading-of-pathology-in-alzheimer-s-disease
#13
REVIEW
Zhong-Yue Lv, Chen-Chen Tan, Jin-Tai Yu, Lan Tan
The senile plaques (SPs) and neurofibrillary tangles (NFTs) are the two major pathological hallmarks of AD, which are composed of β-amyloid protein and Tau protein. So the β-amyloid protein (Aβ) and Tau oligomers (oTau) are the majority in the pathology of AD. Recently, the spreading of Aβ and oTau in the brain of AD patients has received heated value. In this review, we summarize recent research progress and aim to figure out the spreading mechanism of Aβ and Tau in AD via introduction of the formation, release, uptake, diffusion between different brain regions, and the propagation principle of Aβ and Tau...
June 16, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28622179/paucicellular-fibrointimal-proliferation-characterizes-pediatric-pulmonary-vein-stenosis-clinicopathologic-analysis-of-213-samples-from-97-patients
#14
Alexandra E Kovach, Philip M Magcalas, Christina Ireland, Kerry McEnany, Andre M Oliveira, Mark W Kieran, Christopher W Baird, Kathy Jenkins, Sara O Vargas
Pulmonary vein stenosis (PVS) is a luminal narrowing of extrapulmonary pulmonary veins. In pediatric patients, it arises following repair of congenital heart disease, particularly anomalous pulmonary venous return; in lung disease, especially prematurity; and rarely in isolation. The etiology is unknown and the course often fatal without lung transplantation. We hypothesized that systematic clinicopathologic review of pediatric PVS could provide further pathogenic insight. We included patients who underwent first resection of pulmonary venous tissue for symptomatic PVS at our pediatric referral center from 1995 to 2014...
June 15, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28621914/distinguishing-parathyroid-and-thyroid-lesions-on-ultrasound-guided-fine-needle-aspiration-a-correlation-of-clinical-data-ancillary-studies-and-molecular-analysis
#15
Margaret Cho, Thaira Oweity, Tamar C Brandler, Karen Fried, Pascale Levine
BACKGROUND: Differentiating parathyroid and thyroid lesions can be challenging because of considerable morphologic overlap and anatomic proximity. Therefore, the authors sought to identify characteristic morphologic patterns and useful adjunct tests to distinguish these 2 entities. METHODS: A search was conducted in the study institution database for clinically indeterminate thyroid nodules from 2000 through 2016 with an emphasis on confirmed parathyroid nodules...
June 16, 2017: Cancer
https://www.readbyqxmd.com/read/28620632/prevalence-of-soft-tissue-calcifications-in-cbct-images-of-mandibular-region
#16
Leila Khojastepour, Abdolaziz Haghnegahdar, Hamed Sayar
STATEMENT OF THE PROBLEM: Most of the soft tissue calcifications within the head and neck region might not be accompanied by clinical symptoms but may indicate some pathological conditions. PURPOSE: The aim of this research was to determine the prevalence of soft tissue calcifications in cone beam computed tomography (CBCT) images of mandibular region. MATERIALS AND METHOD: In this cross sectional study the CBCT images of 602 patients including 294 men and 308 women with mean age 41...
June 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28620061/whole-body-magnetic-resonance-imaging-in-inflammatory-arthritis-systematic-literature-review-and-first-steps-toward-standardization-and-an-omeract-scoring-system
#17
Mikkel Østergaard, Iris Eshed, Christian E Althoff, Rene P Poggenborg, Torsten Diekhoff, Simon Krabbe, Sabine Weckbach, Robert G W Lambert, Susanne J Pedersen, Walter P Maksymowych, Charles G Peterfy, Jane Freeston, Paul Bird, Philip G Conaghan, Kay-Geert A Hermann
OBJECTIVE: Whole-body magnetic resonance imaging (WB-MRI) is a relatively new technique that can enable assessment of the overall inflammatory status of people with arthritis, but standards for image acquisition, definitions of key pathologies, and a quantification system are required. Our aim was to perform a systematic literature review (SLR) and to develop consensus definitions of key pathologies, anatomical locations for assessment, a set of MRI sequences and imaging planes for the different body regions, and a preliminary scoring system for WB-MRI in inflammatory arthritis...
June 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28619543/circumferential-three-dimensional-printed-tracheal-grafts-research-model-feasibility-and-early-results
#18
Faiz Y Bhora, Erik E Lewis, Sadiq S Rehmani, Adil Ayub, Wissam Raad, Adnan M Al-Ayoubi, Robert S Lebovics
BACKGROUND: Methods for tracheal graft research have presented persistent challenges to investigators, and three-dimensional (3D)-printed biosynthetic grafts offer one potential development platform. We aimed to develop an efficient research platform for customizable circumferential 3D-printed tracheal grafts and evaluate feasibility and early structural integrity with a large-animal model. METHODS: Virtual 3D models of porcine subject tracheas were generated using preoperative computed tomography scans...
June 13, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28616343/debranching-aortic-surgery
#19
REVIEW
Manuel Alonso Pérez, José Manuel Llaneza Coto, José Antonio Del Castro Madrazo, Carlota Fernández Prendes, Mario González Gay, Amer Zanabili Al-Sibbai
Conventional open surgery still remains as the gold standard of care for aortic arch and thoracoabdominal pathology. In centers of excellence, open repair of the arch has been performed with 5% immediate mortality and a low rate of complications; however overall mortality rates are around 15%, being up to 40% of all patients rejected for treatment due to their age or comorbidities. For thoracoabdominal aortic pathology, data reported from centers of excellence show immediate mortality rates from 5% to 19%, spinal cord ischemia from 2...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28616108/advances-in-basic-science-methodologies-for-clinical-diagnosis-in-female-stress-urinary-incontinence
#20
REVIEW
Marwa Abdulaziz, Emily G Deegan, Alex Kavanagh, Lynn Stothers, Denise Pugash, Andrew Macnab
We provide an overview of advanced imaging techniques currently being explored to gain greater understanding of the complexity of stress urinary incontinence (SUI) through better definition of structural anatomic data. Two methods of imaging and analysis are detailed for SUI with or without prolapse: 1) open magnetic resonance imaging (MRI) with or without the use of reference lines; and 2) 3D reconstruction of the pelvis using MRI. An additional innovative method of assessment includes the use of near infrared spectroscopy (NIRS), which uses non-invasive photonics in a vaginal speculum to objectively evaluate pelvic floor muscle (PFM) function as it relates to SUI pathology...
June 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
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