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Vascular malformation

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https://www.readbyqxmd.com/read/29027857/is-there-added-value-in-obtaining-cervical-spine-mri-in-the-assessment-of-nontraumatic-angiographically-negative-subarachnoid-hemorrhage-a-retrospective-study-and-meta-analysis-of-the-literature
#1
Gelareh Sadigh, Chad A Holder, Jeffrey M Switchenko, Seena Dehkharghani, Jason W Allen
OBJECTIVE Diagnostic algorithms for nontraumatic angiographically negative subarachnoid hemorrhage (AN-SAH) vary, and the optimal method remains subject to debate. This study assessed the added value of cervical spine MRI in identifying a cause for nontraumatic AN-SAH. METHODS Consecutive patients 18 years of age or older who presented with nontraumatic SAH between February 1, 2009, and October 31, 2014, with negative cerebrovascular catheter angiography and subsequent cervical MRI were studied. Patients with intraparenchymal, subdural, or epidural hemorrhage; recent trauma; or known vascular malformations were excluded...
October 13, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29026809/spontaneously-resolved-macrocystic-lymphatic-malformations-predictive-variables-and-outcomes
#2
Michael J Phang, Douglas J Courtemanche, Marija Bucevska, Claudia Malic, Jugpal S Arneja
INTRODUCTION: Lymphatic malformations are benign, low-flow vascular malformations that typically present at or near birth. Due to morbidity associated with operative treatment, nonoperative treatment with injection of sclerosant has become the mainstay of therapy. Over the past 15 years, several patients at our centre with macrocystic (>2 cm cyst size) lymphatic malformations have seen their lesions resolve spontaneously while awaiting treatment. In this study, we review features of these patients that may contribute to spontaneous resolution...
February 2017: Plastic Surgery
https://www.readbyqxmd.com/read/29026673/endoscopic-management-of-a-cavernous-malformation-on-the-floor-of-third-ventricle-and-aqueduct-of-sylvius-technical-case-report-and-review-of-the-literature
#3
Luis Alberto Ortega-Porcayo, Alexander Perdomo-Pantoja, Isaac Jair Palacios-Ortíz, Salomon Cohen Cohen, Juan Pablo González-Mosqueda, Juan Luis Gómez-Amador
BACKGROUND: Intraventricular cavernous malformations are unusual intracranial vascular malformations; their deep anatomical location complicates their surgical management. Microsurgical approaches are the gold standard approaches for the resection of ventricular lesions, however, they imply considerable neurovascular risks. CASE DESCRIPTION: A 51-year-old patient presented with acute headache, diplopia, vertigo, blurred vision, and a depressed level of consciousness...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29026517/dermatofibrosarcoma-protuberans-coexisting-in-a-patient-with-a-vascular-malformation-a-rare-coincidence
#4
Parthena Deskoulidi, Michael Sofopoulos, Pantelis Diamantopoulos, Thaleia Nikolaidou, Nikolaos Maltzaris, Maria Theodorakopoulou, Christos Klonaris, Niki Arnogiannaki, Maria Kotrotsiou, Spiros Stavrianos
Dermatofibrosarcoma protuberans with fibrosarcomatous differentiation (DFSP-FS) is a rare soft tissue tumor with more aggressive behavior and it is not clear what causes this type of skin cancer. We describe the case of a 48-year-old woman who was born with a vascular malformation in the sternal region and presented suddenly with a soft tissue sarcoma (DFSP-FS) in the same territory. She was initially treated by embolization as the sarcoma was misdiagnosed but the tumor within 6 months seemed to be growing rapidly and reached a giant dimension with ulceration and required surgical intervention...
October 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29025196/prenatal-molecular-diagnosis-in-rasa1-related-disease
#5
Aurélien Palmyre, Mélanie Eyries, Marie-Victoire Senat, Augustin Ozanne, Stéphanie Staraci, Philippe Dufour, Thierry Chinet, Pascal Lacombe, Florent Soubrier, Philippe Charron
RASA1-related disease is a rare autosomal dominant disease characterized by capillary malformations, arteriovenous malformations (AVMs) and/or arteriovenous fistulas (AFVs). Penetrance is nearly complete and vascular malformations may cause serious complications such as organ injury due to oxygenation disorder, brain abscess, hemorrhage and stroke. Early diagnosis is useful in order to discuss optimal management, including AVMs/AVFs embolization or surgical procedures, and try to prevent some of the complications...
October 12, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29024832/somatic-second-hit-mutation-of-rasa1-in-vascular-endothelial-cells-in-capillary-malformation-arteriovenous-malformation
#6
Philip E Lapinski, Abbas Doosti, Valerie Salato, Paula North, Patricia E Burrows, Philip D King
Capillary malformation-arteriovenous malformation (CM-AVM) is an autosomal dominant vascular disorder that is associated with inherited inactivating mutations of the RASA1 gene in the majority of cases. Characteristically, patients exhibit one or more focal cutaneous CM that may occur alone or together with AVM, arteriovenous fistulas or lymphatic vessel abnormalities. The focal nature and varying presentation of lesions has led to the hypothesis that somatic "second hit" inactivating mutations of RASA1 are necessary for disease development...
October 9, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29024719/calcification-or-not-this-is-the-question-a-one-year-study-of-bovine-pericardial-vascular-patches-cardiocel%C3%A2-in-minipigs
#7
Aida Salameh, Wiebke Greimann, David Vondrys, Martin Kostelka
Objectives A main problem with bioprosthesis used for surgical correction of congenital cardiac malformation is their tendency to shrink and to calcify. Recently, a new material i.e. de-cellularised bovine pericardium (CardioCel(®)) was introduced in clinics. It was proposed that this new patch material should not calcify and should be particularly suitable for the correction of vascular defects in inborn cardiac diseases. The aim of our chronic minipig study was to evaluate the performance of CardioCel(®) patches implanted in aortic and pulmonary artery position, respectively...
October 9, 2017: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29021642/bevacizumab-as-a-treatment-for-hereditary-hemorrhagic-telangiectasia-in-children-a-case-report
#8
Fabio E Ospina, Alex Echeverri, Iván Posso-Osorio, Lina Jaimes, Jaiber Gutierrez, Gabriel J Tobón
CASE DESCRIPTION: Five-year-old female patient with hereditary hemorrhagic telangiectasia. CLINICAL FINDINGS: Deterioration of cardiopulmonary function with higher oxygen requirements secondary to pulmonary arteriovenous shunts, epistaxis. TREATMENT AND OUTCOME: The patient was treated with the monoclonal antibody bevacizumab, which inhibits the vascular endothelial growth factor, with good clinical outcome. CLINICAL RELEVANCE: Hereditary hemorrhagic telangiectasia is an autosomal dominant disorder characterized by arteriovenous malformations in different organs, making its clinical presentations varied...
June 30, 2017: Colombia Médica: CM
https://www.readbyqxmd.com/read/29019819/a-research-of-pyogenic-granuloma-genesis-factor-with-immunohistochemical-analysis
#9
Si Hyun Park, Jun Ho Lee, Min Sung Tak, Hyun Ju Lee, Hwan Jun Choi
Pyogenic granuloma (PG) is a type of vascular tumor for which the growth mechanism is poorly understood. Estrogen and progesterone may influence vascular malformations by increasing neovascularization in the lesions. Pregnancy tumor is a term for PG that occurs on the gingival mucosa of pregnant women in response to local irritation or injury. The etiology and pathogenesis of this phenomenon are not fully understood. Hormonal imbalance has been hypothesized to be responsible for the development of gingival hyper-reactive inflammatory responses...
October 10, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29018013/stroke-resulting-from-an-isolated-pulmonary-arteriovenous-malformation
#10
Jakob Saidman, Hossam Abdou, Sridhar Sampath Kumar
Isolated pulmonary arteriovenous malformations (PAVM) are rare, but can be responsible for paradoxical embolic events. It is important to recognise these situations early and intervene quickly to attain the best outcome. We describe the case of a 45-year-old woman with a long-standing history of migraines with aura who presented to the emergency department with left-sided weakness and slurred speech. Work-up was unclear and she was diagnosed with cryptogenic stroke. Follow-up transoesophageal echocardiogram was suggestive of an atrial septal defect, though no clear defect was evident...
October 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29017305/spontaneous-epidural-hematoma-associated-with-venous-phlebolith-in-cervical-spine-and-possible-pathogenesis
#11
Dong Hwan Kim, Dong Ha Kim, Kyoung Hyup Nam, Byung Kwan Choi, In Ho Han
Although the etiology of spontaneous spinal epidural hematoma (SSEH) is unclear, SSEH is known to be associated with anticoagulants, coagulopathy, vascular malformation, hypertension, and pregnancy. However, no report has been issued on the relation between SSEH and venous phlebolith. Here, the authors present an extremely rare case of SSEH associated with phlebolith in the cervical spine and suggest a possible pathogenesis. A 36-year-old man without any relevant medical history presented with neck pain and numbness and severe radiating pain on the left arm...
September 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/28994816/the-aortic-ring-co-culture-assay-a-convenient-tool-to-assess-the-angiogenic-potential-of-mesenchymal-stromal-cells-in-vitro
#12
Farwah Iqbal, Yarden S Gratch, Peter Szaraz, Clifford L Librach
Angiogenesis is a complex, highly regulated process responsible for providing and maintaining adequate tissue perfusion. Insufficient vasculature maintenance and pathological malformations can result in severe ischemic diseases, while overly abundant vascular development is associated with cancer and inflammatory disorders. A promising form of pro-angiogenic therapy is the use of angiogenic cell sources, which can provide regulatory factors as well as physical support for newly developing vasculature. Mesenchymal Stromal Cells (MSCs) are extensively investigated candidates for vascular regeneration due to their paracrine effects and their ability to detect and home to ischemic or inflamed tissues...
September 18, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28990732/first-use-of-micro-vascular-plugs-in-australia-endovascular-treatment-of-pulmonary-arteriovenous-malformation
#13
Liat Barrett, Nicholas I Brown, Varghese Pynadath Joseph
This report describes the first Australian experience with the Micro Vascular Plug System (MVP), as a permanent embolic device for the treatment of pulmonary arteriovenous malformations (PAVMs). MVPs deployed in small vessels between 2 mm and 5 mm are demonstrated to be feasible, safe and effective treatment for PAVMs.
October 9, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28990006/distal-pancreatectomy-for-pancreatic-arteriovenous-malformation-report-of-a-case
#14
Young Il Choi
Arteriovenous malformation (AVM) of the pancreas is an uncommon disease, which can cause an abdominal pain. This disease is characterized by a tangled vascular network, including the whole or part of the pancreas, resulting in portal hypertension by forming a shunt of the pancreas arteries to drain directly into the portal venous system. This study presents a case that was suspected as AVM of the pancreas by preoperative contrast-enhanced computed tomography scan (CT). A 49-year-old male patient had several episodes of abdominal discomfort associated with dyspepsia for 4 days...
August 2017: Annals of Hepato-Biliary-Pancreatic Surgery
https://www.readbyqxmd.com/read/28989925/genital-tract-cavernous-hemangioma-as-a-rare-cause-of-postpartum-hemorrhage
#15
Bo Ram Yu, Ga Eul Lee, Dong Hyu Cho, Young Ju Jeong, Jeong Heon Lee
Cavernous hemangiomas rarely involve the female genital tract. It is difficult to identify vascular malformations when these lesions are concealed in the vagina or deep vulva area. We present a rare case of vaginal cavernous hemangioma in a 30-year-old primiparous woman with an early severe postpartum hemorrhage (PPH) and delayed continuous bleeding from the episiotomy site. She was treated successfully with transarterial embolization of the left vaginal artery. To our knowledge, this is the first reported case of PPH caused by rupture of a vaginal hemangioma during vaginal delivery in English literature...
September 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28988459/inconsistency-in-classifying-vascular-anomalies-what-s-in-a-name
#16
Kristy S Pahl, Kyung Kim, Casey Sams, Hortensia Alvarez, Scott V Smith, Julie Blatt
BACKGROUND: Vascular anomalies are a heterogeneous group of disorders seen in children and adults. A standard nomenclature for classification has been offered by the International Society for the Study of Vascular Anomalies. Its application is important for communication among the multiple specialties involved in the care of patients and for planning treatment, as well as for research and billing. We hypothesized that terminology still is not uniformly applied, and that this could have an impact on treatment...
October 8, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28987845/recurrent-cerebral-hemorrhages-in-normal-pregnancy-secondary-to-mycotic-pseudoaneurysms-related-to-choriocarcinoma
#17
Crystal Jing Jing Yeo, Gavin W Britz, Suzanne Z Powell, R Glenn Smith, Yi J Zhang
BACKGROUND: Choriocarcinoma coexisting with or after normal pregnancy is extremely rare. To our knowledge, our case report is the first time cerebral mycotic pseudoaneurysms from choriocarcinoma have been proven angiographically. CASE DESCRIPTION: A 38-week pregnant 26-year old woman presented with an acute left frontal hemorrhage. She underwent emergency Caesarian, followed by hematoma evacuation and resection of what grossly appeared to be a medium-sized arteriovenous malformation at the time of surgery...
October 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28987836/successful-surgical-resection-of-spinal-artery-aneurysms-report-of-three-cases
#18
Yanming Ren, Min He, Chao You, Jin Li
BACKGROUND: Spinal artery aneurysms (SAAs) are extremely rare lesions that can occur in isolation or associated with vascular malformations. Herein, we present three unusual cases of SAAs, and discuss imaging, diagnosis and surgical management strategies. CASE DESCRIPTION: The first case was a 57-year-old woman who presented with sudden onset of severe headache. Spinal angiography demonstrated an isolated anterior spinal artery (ASA) aneurysm at the level of craniocervical junction...
October 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28987197/neuropathology-of-cerebrovascular-diseases
#19
Isidro Ferrer, Noemi Vidal
The chapter describes the epidemiology of cerebrovascular diseases, anatomy of the cerebral blood vessels, pathophysiology of ischemia, hypoxia, hypoxemia, anemic hypoxia, histotoxic hypoxia, carbon monoxide damage, hyperoxid brain damage and decompression sickness, and selective cell and regional vulnerability; diseases of the blood vessels including atherosclerosis, hypertensive angiopathy, small vessel disease, inflammatory vascular diseases, cerebral amyloid angiopathies, CADASIL, CARASIL and other diseases that can lead to cerebrovascular occlusion; intracranial and intraspinal aneurysms and vascular malformations; hematologic disorders that can cause cerebral infarct or hemorrhage; brain ischemic damage; and spontaneous intracranial bleeding...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28987196/overview-of-neuroradiology
#20
Elna-Marie Larsson, Johan Wikström
Neuroradiology with computed tomography (CT) and magnetic resonance imaging (MRI) is essential for the initial evaluation of patients with a clinical suspicion of brain and spine disorders. Morphologic imaging is required to obtain a probable diagnosis to support the treatment decisions in pre- and perinatal disorders, vascular diseases, traumatic injuries, metabolic disorders, epilepsy, infection/inflammation, neurodegenerative disorders, degenerative spinal disease, and tumors of the central nervous system...
2017: Handbook of Clinical Neurology
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