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https://www.readbyqxmd.com/read/29455498/-radiologic-observation-of-the-blood-supply-changes-around-the-knee-with-osteoarthritis
#1
Jin-Song Liu, Zhi-Yao Li
OBJECTIVE: To compare blood supply changes around the knee joint between normal and osteoarthritis knee. METHODS: From June 2014 to June 2015, 30 patients with knee osteoarthritis and 30 healthy adults were recruited. In osteoarthritis group, there were 9 males and 21 females, with a mean age of (65.967±7.132) years old(ranged, 53 to 82 years old), and the mean arterial pressure was(93.462±7.633) mmHg. In control group, there were 9 males and 21 females, with a mean age of (62...
August 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29454128/preoperative-3-dimensional-angiography-data-and-intraoperative-real-time-vascular-data-integrated-in-microscope-based-navigation-by-automatic-patient-registration-applying-intraoperative-computed-tomography
#2
Barbara Carl, Miriam Bopp, Somar Chehab, Siegfried Bien, Christopher Nimsky
OBJECTIVE: To establish a workflow integrating preoperative 3-D angiography data, as well as intraoperative real-time vascular information in microscope-based navigation for aneurysm and arteriovenous malformation surgery. PATIENTS & METHODS: In 7 patients (3 arteriovenous malformations, 4 aneurysms) preoperative 3-D rotational angiography or computed tomography (CT) or magnetic resonance angiography data were navigated applying a 32-slice movable CT scanner for low-dose registration scanning...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29454117/the-differentially-expressed-genes-of-human-sporadic-cerebral-cavernous-malformations
#3
Xiangjiang Lin, Guolu Meng, Xing Liu, Tengfei Yu, Chuanfeng Bai, Xiaobin Fei, Shengze Deng, Jizong Zhao, Shulin Ren, Junting Zhang, Zhen Wu, Shuo Wang, Jianguo Zhang, Liwei Zhang
OBJECTIVES: To understand the development of Sporadic cerebral cavernous malformations (SCCM) comprehensively, we analyzed gene expression profiles in SCCMs by the gene microarray. METHODS: The total number of the specimens collected in our study was 14, 7 of which were SCCMs, and the others were controls that were obtained from normal brain vessels. The total RNA was extracted and hybridized with Oligonucleotide array containing 21522 genes. The analysis of Gene Ontology (GO) items and molecular pathways was performed based on the GO and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29453407/neovasculature-can-be-induced-by-patching-an-arterial-graft-into-a-vein-a-novel-in-vivo-model-of-spontaneous-arteriovenous-fistula-formation
#4
Yukinobu Ito, Makoto Yoshida, Daichi Maeda, Masato Takahashi, Hiroshi Nanjo, Hirotake Masuda, Akiteru Goto
Arteriovenous malformations consist of tangles of arteries and veins that are often connected by a fistula. The causes and mechanisms of these clinical entities are not fully understood. We discovered that suturing an arterial patch into the common jugular vein of rabbits led to spontaneous neovascularization, the formation of an arteriovenous fistula and the development of an arteriovenous shunt. An arterial patch excised from the common carotid artery was sutured into the common jugular vein. Within a month, a dense nidus-like neovasculature formed around the patch...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29452831/painless-urethral-bleeding-during-penile-erection-in-an-adult-man-with-klippel-trenaunay-syndrome-a-case-report
#5
Hongen Lei, Xing Guan, Hu Han, Xiaosong Qian, Xiaoguang Zhou, Xiaodong Zhang, Long Tian
INTRODUCTION: Klippel-Trenaunay syndrome (KTS) is a rare congenital vascular disorder characterized by a triad of cutaneous port wine capillary malformations, varicose veins, and hemihypertrophy of bone and soft tissues. AIMS: To report on a rare case of KTS in an adult man manifested by painless urethral bleeding during penile erection briefly review the clinical presentation and management of the genitourinary forms of this syndrome. METHODS: On presentation, the clinical features of this patient, including medical history, signs and symptoms, and imaging examinations, were recorded...
February 13, 2018: Sexual Medicine
https://www.readbyqxmd.com/read/29451848/mr-imaging-of-atraumatic-muscle-disorders
#6
Edward Smitaman, Dyan V Flores, Catalina Mejía Gómez, Mini N Pathria
Atraumatic disorders of skeletal muscles include congenital variants; inherited myopathies; acquired inflammatory, infectious, or ischemic disorders; neoplastic diseases; and conditions leading to muscle atrophy. These have overlapping appearances at magnetic resonance (MR) imaging and are challenging for the radiologist to differentiate. The authors organize muscle disorders into four MR imaging patterns: (a) abnormal anatomy with normal signal intensity, (b) edema/inflammation, (c) mass, and (d) atrophy, highlighting each of their key clinical and imaging findings...
February 16, 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29451683/prenatal-diagnosis-of-anomalous-origin-of-pulmonary-artery
#7
Xuelei Li, Zhongping Mu, Xu Li, Zongjie Weng
BACKGROUND: Anomalous origin of the pulmonary arteries is a rare congenital pulmonary vascular malformation, that includes unilateral absence of the pulmonary artery (UAPA), anomalous origin of unilateral pulmonary artery (AOPA) and left pulmonary artery sling (LPAS). METHODS: We analyze 15 cases of fetal pulmonary artery abnormalities from 2011 to 2017, detected via prenatal ultrasound at our center. RESULTS: The 15 cases include UAPA (five), AOPA (six), and LPAS (four)...
February 16, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29449337/alk1-activin-receptor-like-kinase-1-loss-results-in-vascular-hyperplasia-in-mice-and-humans-through-pi3k-phosphatidylinositol-3-kinase-activation
#8
Elisenda Alsina-Sanchís, Yaiza García-Ibáñez, Ana M Figueiredo, Carla Riera-Domingo, Agnès Figueras, Xavier Matias-Guiu, Oriol Casanovas, Luisa M Botella, Miquel A Pujana, Antoni Riera-Mestre, Mariona Graupera, Francesc Viñals
OBJECTIVE: ALK1 (activin-receptor like kinase 1) is an endothelial cell-restricted receptor with high affinity for BMP (bone morphogenetic protein) 9 TGF-β (transforming growth factor-β) family member. Loss-of-function mutations in ALK1 cause a subtype of hereditary hemorrhagic telangiectasia-a rare disease characterized by vasculature malformations. Therapeutic strategies are aimed at reducing potential complications because of vascular malformations, but currently, there is no curative treatment for hereditary hemorrhagic telangiectasia...
February 15, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29446767/clapo-syndrome-identification-of-somatic-activating-pik3ca-mutations-and-delineation-of-the-natural-history-and-phenotype
#9
Lara Rodriguez-Laguna, Kristina Ibañez, Gema Gordo, Sixto Garcia-Minaur, Fernando Santos-Simarro, Noelia Agra, Elena Vallespín, Victoria E Fernández-Montaño, Rubén Martín-Arenas, Ángela Del Pozo, Héctor González-Pecellín, Rocío Mena, Inmaculada Rueda-Arenas, María V Gomez, Cristina Villaverde, Ana Bustamante, Carmen Ayuso, Víctor L Ruiz-Perez, Julián Nevado, Pablo Lapunzina, Juan C Lopez-Gutierrez, Victor Martinez-Glez
PurposeCLAPO syndrome is a rare vascular disorder characterized by capillary malformation of the lower lip, lymphatic malformation predominant on the face and neck, asymmetry, and partial/generalized overgrowth. Here we tested the hypothesis that, although the genetic cause is not known, the tissue distribution of the clinical manifestations in CLAPO seems to follow a pattern of somatic mosaicism.MethodsWe clinically evaluated a cohort of 13 patients with CLAPO and screened 20 DNA blood/tissue samples from 9 patients using high-throughput, deep sequencing...
February 15, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29445574/linear-verrucous-hemangioma-a-rare-case-and-dermoscopic-clues-to-diagnosis
#10
Aditi Dhanta, Payal Chauhan, Dilip Meena, Neirita Hazarika
Verrucous hemangioma (VH) is a rare, congenital and localized vascular malformation, which usually presents as warty, bluish, vascular papules, plaques, or nodules, mainly on the lower extremities. Linear presentation of the disease is rare. A deep biopsy is necessary to confirm the clinical diagnosis by histopathological examination, with dermoscopy acting as a useful tool for evaluating the precise vascular structure. Here, we report on a 13-year-old female child with linear VH presenting over her foot since infancy and dermoscopic findings of VH along with the clinical-pathologic features...
January 2018: Dermatology Practical & Conceptual
https://www.readbyqxmd.com/read/29445571/immunoreactivity-of-wilms-tumor-1-wt1-as-an-additional-evidence-supporting-hemangiomatous-rather-than-inflammatory-origin-in-the-etiopathogenesis-of-angiolymphoid-hyperplasia-with-eosinophilia
#11
Fatma Tokat, Julia S Lehman, Engin Sezer, Emel Dikicioglu Cetin, Umit Ince, Emel Ozturk Durmaz
Background: Angiolymphoid hyperplasia with eosinophilia (ALHE) is a rare vascular proliferative disorder mainly located in the periauricular region. The etiopathogenesis of ALHE is unknown, and it is still controversial as to whether the entity represents a benign vascular neoplasm or an inflammatory process. Aim: Recently, the intracytoplasmic staining pattern of Wilms tumor 1 (WT1) on immunohistochemistry has highlighted true vascular neoplasms, such as microvenular hemangioma, tufted angioma, and spindle cell hemangioma, which has made it helpful to distinguish ALHE from vascular malformations, as there is a negative staining pattern in the other entities...
January 2018: Dermatology Practical & Conceptual
https://www.readbyqxmd.com/read/29444212/loss-of-function-mutations-in-ephb4-are-responsible-for-vein-of-galen-aneurysmal-malformation
#12
Alexandre Vivanti, Augustin Ozanne, Cynthia Grondin, Guillaume Saliou, Loic Quevarec, Helène Maurey, Patrick Aubourg, Alexandra Benachi, Marta Gut, Ivo Gut, Jelena Martinovic, Marie Victoire Sénat, Marcel Tawk, Judith Melki
Vein of Galen aneurysmal malformation is a congenital anomaly of the cerebral vasculature representing 30% of all paediatric vascular malformations. We conducted whole exome sequencing in 19 unrelated patients presenting this malformation and subsequently screened candidate genes in a cohort of 32 additional patients using either targeted exome or Sanger sequencing. In a cohort of 51 patients, we found five affected individuals with heterozygous mutations in EPHB4 including de novo frameshift (p.His191Alafs*32) or inherited deleterious splice or missense mutations predicted to be pathogenic by in silico tools...
February 9, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29443780/analysis-of-the-characteristics-of-optical-coherence-tomography-angiography-for-retinal-cavernous-hemangioma-a-case-report
#13
Shuyuan Lyu, Ming Zhang, Ruikang K Wang, Yunxia Gao, Qinqin Zhang, Xiaoxue Min
RATIONALE: Retinal cavernous hemangioma is a rare congenital vascular malformation with typical fundus changes. Optical coherence tomography angiography (OCTA), which is in rise in the recent years, is a rapid and noninvasive technology to assist in obtaining information regarding the blood flow changes in the fundus lesions from different layers without injecting a contrast agent. PATIENT CONCERNS: A 40-year-old male patient with visual occlusion in the right eye for >1 month was reported...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29440838/arterial-duct-and-pulmonary-arteriovenous-malformations-a-shunt-masking-a-shunt
#14
Mario Giordano, Giuseppe Santoro, Maria Teresa Palladino, Maria Giovanna Russo
A 5-month-old infant, referred to our institution for percutaneous arterial duct (AD) embolization, showed multiple huge pulmonary arteriovenous malformations (PAVMs) associated with a small AD and several tiny systemic-to-pulmonary collaterals. This anatomic arrangement was a possible cause of lack of cyanosis and disproportionately higher hemodynamic relevance of the ductal shunt. The PAVMs became pathophysiologically evident immediately after the closure of AD and systemic to pulmonary artery collaterals and presented clinically with a life-threatening cyanosis...
January 2018: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/29440349/genetic-tests-in-lymphatic-vascular-malformations-and-lymphedema
#15
Sandro Michelini, Stefano Paolacci, Elena Manara, Costantino Eretta, Raul Mattassi, Byung-Boong Lee, Matteo Bertelli
Syndromes with lymphatic malformations show phenotypic variability within the same entity, clinical features that overlap between different conditions and allelic as well as locus heterogeneity. The aim of this review is to provide a comprehensive clinical genetic description of lymphatic malformations and the techniques used for their diagnosis, and to propose a flowchart for genetic testing. Literature and database searches were performed to find conditions characterised by lymphatic malformations or the predisposition to lymphedema after surgery, to identify the associated genes and to find the guidelines and genetic tests currently used for the molecular diagnosis of these disorders...
February 9, 2018: Journal of Medical Genetics
https://www.readbyqxmd.com/read/29438260/endothelial-cell-biology-of-endoglin-in-hereditary-hemorrhagic-telangiectasia
#16
Wade W Sugden, Arndt F Siekmann
PURPOSE OF REVIEW: Mutations in the Endoglin (Eng) gene, an auxiliary receptor in the transforming growth factor beta (TGFβ)-superfamily signaling pathway, are responsible for the human vascular disorder hereditary hemorrhagic telangiectasia (HHT) type 1, characterized in part by blood vessel enlargement. A growing body of work has uncovered an autonomous role for Eng in endothelial cells. We will highlight the influence of Eng on distinct cellular behaviors, such as migration and shape control, which are ultimately important for the assignment of proper blood vessel diameters...
February 12, 2018: Current Opinion in Hematology
https://www.readbyqxmd.com/read/29438257/recent-insights-into-vascular-development-from-studies-in-zebrafish
#17
Ryota L Matsuoka, Didier Y R Stainier
PURPOSE OF REVIEW: Zebrafish has provided a powerful platform to study vascular biology over the past 25 years, owing to their distinct advantages for imaging and genetic manipulation. In this review, we summarize recent progress in vascular biology with particular emphasis on vascular development in zebrafish. RECENT FINDINGS: The advent of transcription activator-like effector nuclease and clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 genome-editing technologies has dramatically facilitated reverse genetic approaches in zebrafish, as in other models...
February 12, 2018: Current Opinion in Hematology
https://www.readbyqxmd.com/read/29434431/venous-malformations-management-by-er-cr-ysgg-laser-an-alternative-approach
#18
Vinod Chandel, Babita Jangra, Nishant Khurana, Amit Garg, Devashish
Background and Aim: Venous malformations (VMs) are slow-flow vascular anomalies composed of ectatic venous channels. Its management with Er,Cr:YSGG laser has been proven effective. In the present case a teenage patient reported with a bluish lesion, soft inconsistency on the dorsal aspect of tongue. The lesion was removed with Er, Cr: YSGG laser (2780 nm) with minimal anaesthetic infiltration. Results: Patient reported no postoperative pain. Clinical follow up after three months showed excellent results and uneventful healing...
December 31, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29432871/tertiary-referral-hospital-experiences-of-men-presenting-with-painless-post-coital-gross-hematuria-and-a-suggestion-for-the-management-algorithm
#19
Dong Hyuk Kang, Joo Yong Lee, Dae Chul Jung, Young Taik Oh, Eun Suk Cho, Sung Yoon Park, Ki Soo Lee, Kang Su Cho
OBJECTIVE: To review the tertiary referral hospital experiences of men presenting with painless post-coital gross hematuria (PCGH) and suggest the management algorithm. MATERIALS AND METHODS: We reviewed clinical data from 19 male patients who first visited a clinic because of PCGH between 2009 and 2016. The patients were evaluated according to our tentative management algorithm for painless PCGH. First, a general work-up for painless gross hematuria (GH) was performed...
February 9, 2018: Urology
https://www.readbyqxmd.com/read/29431255/short-term-side-effects-and-patient-reported-outcomes-of-bleomycin-sclerotherapy-in-vascular-malformations
#20
Joana M Mack, Gresham T Richter, David Becton, Omar Salem, Sarah E M Hill, Shelley E Crary
BACKGROUND: Vascular malformations (VM) are congenital lesions that can be debilitating and cause significant aesthetic and functional limitations. The chemotherapeutic agent bleomycin has been utilized as a sclerosant, directly injected percutaneously into the VM. Unfortunately, little is known about the benefits and short-term side effects of bleomycin with intralesional injections. PROCEDURE: An IRB approved, retrospective chart review was performed on patients with VM who had been treated with intralesional bleomycin...
February 12, 2018: Pediatric Blood & Cancer
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