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Venous malformation

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https://www.readbyqxmd.com/read/27928068/clinical-value-of-classification-of-venous-malformations-with-contrast-enhanced-mr-angiography
#1
Ahmed Abdel Khalek Abdel Razek, Germeen Ashmalla Albair, Sieza Samir
AIM: To classify venous malformations based on contrast-enhanced MR angiography that may serve as a basis for treatment plan. PATIENTS AND METHODS: A retrospective analysis was performed in 58 patients with venous malformations who underwent contrast-enhanced MR angiography. Venous malformations were classified according to their venous drainage into: type I, isolated malformation without peripheral drainage; type II, malformation that drains into normal veins; type III, malformation that drains into dilated veins; and type IV, malformation that represents dysplastic venous ectasia...
December 7, 2016: Phlebology
https://www.readbyqxmd.com/read/27923749/spinal-glomus-arteriovenous-malformation-presenting-with-a-subarachnoid-hemorrhage
#2
Pascal Jabbour, Badih Daou, Elias Atallah, Fadi Al-Saiegh, Kenan Alkhalili, Stavropoula Tjoumakaris
BACKGROUND AND IMPORTANCE: Spinal arteriovenous malformations (AVMs) are rare lesions that may cause serious neurologic morbidity. With the developments in endovascular technology and embolic materials, endovascular management of spinal AVMs has gained significant popularity. CLINICAL PRESENTATION: A 61-year-old female presented with the worst headache of her life, associated with an acute onset of nausea and vomiting and was shown to have a grade 2 subarachnoid hemorrhage on CT scan...
December 3, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27912798/bilateral-anomalous-drainage-of-the-posterior-divisions-of-renal-veins-into-the-azygos-venous-system-in-a-20-year-old-woman-a-case-report
#3
Pedro Pallangyo, Frederick Lyimo, Paulina Nicholaus, Stephano Masatu, Mohamed Janabi
BACKGROUND: Renal vein anomalies are relatively infrequent and generally asymptomatic. Preoperative knowledge of such variants is, however, of paramount importance in several angiographic and surgical procedures including renal venography, renal vein sampling, spermatic embolization, and renal transplantation. Inadequate knowledge and failure to recognize such anatomic variations may lead to several operative hazards including hemorrhage, nephrectomy, and even death. CASE PRESENTATION: We report a case of bilateral anomalous drainage of the posterior divisions of renal veins into the azygos venous system in a 20-year-old woman of African descent from Tanzania who presented to us with a 12-year history of recurrent anemia...
December 3, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27911248/international-multicenter-cohort-study-of-pediatric-brain-arteriovenous-malformations-part-1-predictors-of-hemorrhagic-presentation
#4
Dale Ding, Robert M Starke, Hideyuki Kano, David Mathieu, Paul P Huang, Caleb Feliciano, Rafael Rodriguez-Mercado, Luis Almodovar, Inga S Grills, Danilo Silva, Mahmoud Abbassy, Symeon Missios, Douglas Kondziolka, Gene H Barnett, L Dade Lunsford, Jason P Sheehan
OBJECTIVE Brain arteriovenous malformations (AVMs) are the most common cause of spontaneous intracranial hemorrhage in pediatric patients (age < 18 years). Since the cumulative lifetime risk of AVM hemorrhage is considerable in children, an improved understanding of the risk factors influencing hemorrhagic presentation may aid in the management of pediatric AVMs. The aims of this first of a 2-part multicenter, retrospective cohort study are to evaluate the incidence and determine the predictors of hemorrhagic presentation in pediatric AVM patients...
December 2, 2016: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27911229/c-2-arteriovenous-fistula-presenting-as-a-pathologic-hangman-s-fracture-case-report
#5
Rajeev D Sen, Carolina Gesteira Benjamin, Howard A Riina, Donato Pacione
The authors report on an 81-year-old woman with a pathologic hangman's fracture secondary to a complex arteriovenous fistula (AVF). The patient presented with severe, unremitting neck pain and was found to have fractures bilaterally through the pars interarticularis of C-2 with significant anterior subluxation of C-2 over C-3 along with widening of the left transverse foramen. Due to an abnormally appearing left vertebral artery (VA) on CT angiography, the patient underwent conventional angiography, which revealed a complex AVF stemming from the left VA at the level of C-2 with dilated posterior cervical veins and a large venous varix...
December 2, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27900505/subsequent-haemorrhage-in-children-with-untreated-brain-arteriovenous-malformation-higher-risk-with-unbalanced-inflow-and-outflow-angioarchitecture
#6
Li Ma, Xiao-Lin Chen, Yu Chen, Chun-Xue Wu, Jun Ma, Yuan-Li Zhao
OBJECTIVES: Children with brain arteriovenous malformations (bAVMs) are at risk of life-threatening haemorrhage in their early lives. Our aim was to analyse various angioarchitectural features of bAVM to predict the risk of subsequent haemorrhage during follow-up in children. METHODS: We identified all consecutive children admitted to our institution for bAVMs between July 2009 and September 2015. Children with at least 1 month of treatment-free follow-up after diagnosis were included in further analysis...
November 29, 2016: European Radiology
https://www.readbyqxmd.com/read/27900253/the-clinico-radiological-spectrum-of-masseteric-venous-malformation-case-report
#7
Kavita Agarwal, Hemant R Umarji, Sonali Kadam, Neeraj Agrawal
Due to its location, intra-masseteric venous malformation often mistaken for a parotid swelling and clinical examination alone frequently underestimates the deep extension of the lesion and rarely gives accurate pre-operative diagnosis. But once it is diagnosed, the feasibility of the treatment and the plan of approach depend on accurate delineation of the extent, size and location of the lesion. Therefore, complimentary radiographic studies are essential for its management. In this case report, typical features of venous malformation within the masseter muscle, including clinical findings (turkey wattle sign) and imaging are presented...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27894790/venous-malformations-of-the-head-and-neck-current-concepts-in-management
#8
REVIEW
C Fowell, C Verea Linares, R Jones, H Nishikawa, A Monaghan
Low-flow venous malformations are congenital lesions and they are the third most common vascular anomaly in the head and neck. In this paper, the third in a series of three educational reviews, we discuss current trends in their management, and include a summary of common sclerosant agents used in their control.
November 25, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27884880/first-pass-contrast-enhanced-mra-for-pretherapeutic-diagnosis-of-spinal-epidural-arteriovenous-fistulas-with-intradural-venous-reflux
#9
S Mathur, S P Symons, T J Huynh, P Muthusami, W Montanera, A Bharatha
BACKGROUND AND PURPOSE: Spinal epidural AVFs are rare spinal vascular malformations. When there is associated intradural venous reflux, they may mimic the more common spinal dural AVFs. Correct diagnosis and localization before conventional angiography is beneficial to facilitate treatment. We hypothesize that first-pass contrast-enhanced MRA can diagnose and localize spinal epidural AVFs with intradural venous reflux and distinguish them from other spinal AVFs. MATERIALS AND METHODS: Forty-two consecutive patients with a clinical and/or radiologic suspicion of spinal AVF underwent MR imaging, first-pass contrast-enhanced MRA, and DSA at a single institute (2000-2015)...
November 24, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27879620/recurrent-orbital-inflammation-mimicking-orbital-cellulitis-associated-with-orbitopalpebral-venous-lymphatic-malformation
#10
Alicia Galindo-Ferreiro, Hind M Alkatan, Sahar M ElKhamary, Saif AlDosairi, A Augusto V Cruz
An 8-year-old boy initially presented with an orbitopalpebral mass diagnosed clinically and radiologically as a low-flow diffuse venous lymphatic malformation involving the left upper eyelid and orbit. Over 8 months of follow up, he had 2 acute episodes of severe orbital inflammation that warranted hospitalization and treatment with intravenous antibiotic, steroids and surgical debulking. After a third surgical excision, the lesion remained clinically stable.
November 22, 2016: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27869147/interplay-between-vegf-and-nrf2-regulates-angiogenesis-due-to-intracranial-venous-hypertension
#11
Liwen Li, Hao Pan, Handong Wang, Xiang Li, Xiaomin Bu, Qiang Wang, Yongyue Gao, Guodao Wen, Yali Zhou, Zixiang Cong, Youqing Yang, Chao Tang, Zhengwei Liu
Venous hypertension(VH) plays an important role in the pathogenesis of cerebral arteriovenous malformations (AVMs) and is closely associated with the HIF-1α/VEGF signaling pathway. Nuclear factor erythroid 2-related factor 2(Nrf2) significantly influences angiogenesis; however, the interplay between Nrf2 and VEGF under VH in brain AVMs remains unclear. Therefore, our study aimed to investigate the interplay between Nrf2 and VEGF due to VH in brain AVMs. Immunohistochemistry indicated that Nrf2 and VEGF were highly expressed in human brain AVM tissues...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27864873/hereditary-haemorrhagic-telangiectasia-to-transplant-or-not-to-transplant-is-there-a-right-time-for-liver-transplantation
#12
Yannick D Muller, Roland Oppliger, Romain Breguet, Philippe Meyer, Laura Rubbia-Brandt, Pierre-Auguste Petignat, Thomas Harr, Eric Dayer, Jörg D Seebach
BACKGROUND & AIMS: Hereditary haemorrhagic telangiectasia is characterized by arterio-venous malformations (AVM). It frequently involves the liver without clinical symptoms, but may lead to biliary ischaemia, portal hypertension, or fatal high-output heart failure. The indication of liver transplantation is controversial. METHODS: Herein, we report the case of a 65-year-old female patient with a 'double Osler syndrome' consisting of hereditary haemorrhagic telangiectasia (HHT) and type I hereditary angioedema diagnosed at the age of 25 and 22 years respectively...
December 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27857464/the-abernethy-malformation-myriad-imaging-manifestations-of-a-single-entity
#13
Samarjit S Ghuman, Saumya Gupta, T B S Buxi, Kishan S Rawat, Anurag Yadav, Naimish Mehta, Seema Sud
Abernethy malformation, also known as congenital extrahepatic portosystemic shunts (CEPS) is a rare clinical entity and manifests with different clinical symptoms. CEPS are abnormalities of vascular development where there is shunting of portal blood into the systemic venous system. Multidetector computed tomography (MDCT) is a fast and effective modality for evaluation of CEPS. CT displays all the information desired by the surgeon as well as the clinician including the anatomy of the splenic and superior mesenteric veins, size and site of the shunt, presence or absence of the portal vein radicles, and helps to plan the therapy and even the follow-up of these patients...
July 2016: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/27847307/the-glue-that-holds-the-situation-together
#14
Kyle J Godfrey, Andrew R Harrison, Bobby S Korn, Don O Kikkawa
A 48-year-old man presented with a longstanding left upper eyelid mass that increased in size when bending forward. The mass was associated with enophthalmos and slowly increased in size with Valsalva maneuver. Magnetic resonance imaging and arteriography demonstrated a vascular malformation without an abnormal arterial component. Because of his increasing pain, the vascular malformation was excised in a multidisciplinary approach involving intraoperative fluoroscopic mapping, cyanoacrylate embolization and surgical excision...
November 12, 2016: Survey of Ophthalmology
https://www.readbyqxmd.com/read/27843434/peters-anomaly-in-twins-a-case-report-of-a-rare-incident-with-novel-comorbidities
#15
Hashem S Almarzouki, Alaa A Tayyib, Hassan A Khayat, Raed E Alsulami, Saeed M Alzahrani, Abdulaziz S Alkahtani, Loai S Alghifees
INTRODUCTION: Peters anomaly is a rare developmental malformation involving the anterior segment of the eye, which culminates in amblyopia or congenital blindness. Multiple ocular and/or systemic malformations have been observed with this anomaly, and novel comorbidities continue to be reported. CASE PRESENTATION: The probands were monozygotic twin boys (twin I and twin II) born to consanguineous parents at 36 weeks of gestation. Coarse facial features and deep-seated eyes were noted at birth...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/27834594/clinical-course-of-untreated-thalamic-cavernous-malformations-hemorrhage-risk-and-neurological-outcomes
#16
Kai-Bing Tian, Jing-Jie Zheng, Jun-Peng Ma, Shu-Yu Hao, Liang Wang, Li-Wei Zhang, Zhen Wu, Jun-Ting Zhang, Da Li
OBJECTIVE The natural history of cerebral cavernous malformations (CMs) has been widely studied, but the clinical course of untreated thalamic CMs is largely unknown. Hemorrhage of these lesions can be devastating. The authors undertook this study to obtain a prospective hemorrhage rate and provide a better understanding of the prognosis of untreated thalamic CMs. METHODS This longitudinal cohort study included patients with thalamic CMs who were diagnosed between 2000 and 2015. Clinical data were recorded, radiological studies were extensively reviewed, and follow-up evaluations were performed...
November 11, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27831835/imaging-of-neurologic-conditions-in-pregnant-patients
#17
Sangam Kanekar, Shante Bennett
A number of physiologic, hormonal, immunologic, and hemodynamic changes take place in the maternal body during pregnancy. The majority of these changes are essential for maintaining the normal course of pregnancy. However, these changes may also cause acute or chronic conditions that affect various biologic systems in the mother. In addition, conditions of the central and peripheral nervous systems can cause a variety of neurologic symptoms and complications. Neurologic signs and symptoms in pregnant and postpartum women may be due to the exacerbation of a preexisting medical condition, the initial manifestation of a primary central nervous system-related problem, or a neurologic problem unique to pregnancy and the postpartum period...
November 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27826976/patients-with-klippel-trenaunay-syndrome
#18
M Zavacka, J Pobehova, K Gibarti, M Frankovicova
Klippel-Trenaunay syndrome is the most frequent systemic venous angiodysplasia. It is characterized by cutaneous capillary malformations - naevus flammeus, excessive growth of soft and bone tissue, venous and lymphatic malformations. Investigative methods include: clinical examinations, venography as the evidence of dysplastic changes of superficial and / or deep venous system, the Moyne obstruction and venous insufficiency perforator. Treatment is conservative, related to that of chronic venous disease. The surgery is aimed at removing the varices and insufficient perforators (Fig...
2016: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/27822573/venous-malformation-with-multiple-phleboliths-%C3%A2-a-case-report
#19
Canan Uzun, Peruze Celenk, Paul F van der Stelt
Venous malformations are congenital, abnormally formed vessels, present at birth. They do not undergo regression with the growth of the patient. Due to the stagnation of blood flow in venous malformations, thrombosis and phlebolith formation may occur. Phleboliths are calcified thrombi which radiographically must be differentiated from calcified lymph nodes, sialoliths, foreign bodies, and other radiopacities. We report an extensive venous malformation in a 19-year-old woman with panoramic radiography demonstrating multiple phleboliths...
November 7, 2016: Quintessence International
https://www.readbyqxmd.com/read/27821474/the-dual-microcatheter-technique-for-transvenous-embolization-of-dural-arteriovenous-fistulae
#20
Isaac Josh Abecassis, John D Nerva, Basavaraj V Ghodke, Laligam N Sekhar, Michael R Levitt, Louis J Kim
BACKGROUND: Dural arteriovenous fistulae (dAVFs) comprise 10-15% of all intracranial arteriovenous malformations. The goal of surgical or endovascular intervention is complete obliteration of the fistulous connection(s). In cases where dAVF venous drainage is separate from normal cortical drainage, transvenous embolization can provide fast and effective fistula obliteration. OBJECTIVE: To describe a new method of efficient transvenous embolization (the 'dual microcatheter technique') for the treatment of dAVFs...
November 7, 2016: Journal of Neurointerventional Surgery
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