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Cavernous malformation

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https://www.readbyqxmd.com/read/28534135/automated-algorithm-for-counting-microbleeds-in-patients-with-familial-cerebral-cavernous-malformations
#1
Xiaowei Zou, Blaine L Hart, Marc Mabray, Mary R Bartlett, Wei Bian, Jeffrey Nelson, Leslie A Morrison, Charles E McCulloch, Christopher P Hess, Janine M Lupo, Helen Kim
PURPOSE: Familial cerebral cavernous malformation (CCM) patients present with multiple lesions that can grow both in number and size over time and are reliably detected on susceptibility-weighted imaging (SWI). Manual counting of lesions is arduous and subject to high variability. We aimed to develop an automated algorithm for counting CCM microbleeds (lesions <5 mm in diameter) on SWI images. METHODS: Fifty-seven familial CCM type-1 patients were included in this institutional review board-approved study...
May 22, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28521358/transcallosal-transchoroidal-fissure-approach-for-resection-of-third-ventricle-cavernous-malformation-3-dimensional-operative-video
#2
Brian P Walcott, Jonathan D Breshears, Omar Choudhri, Michael T Lawton
No abstract text is available yet for this article.
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28503485/surgical-approaches-for-symptomatic-cerebral-cavernous-malformations-of-the-thalamus-and-brainstem
#3
Dale Ding, Robert M Starke, R Webster Crowley, Kenneth C Liu
OBJECTIVE: Surgical resection of thalamic and brainstem cerebral cavernous malformations (CCMs) is associated with significant operative morbidity, but it may be outweighed, in some cases, by the neurological damage from recurrent hemorrhage in these eloquent areas. The goals of this retrospective cohort study are to describe the technical nuances of surgical approaches and determine the postoperative outcomes for CCMs of the thalamus and brainstem. MATERIALS AND METHODS: We reviewed an institutional database of patients harboring thalamic or brainstem CCMs, who underwent surgical resection from 2010 to 2014...
March 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28503284/arteriovenous-malformations-of-the-colon-a-report-of-two-cases-and-review-of-the-literature
#4
Ghodratollah Maddah, Abbas Abdollahi, Omid Rouhbakhshfar, Shirin Taraz Jamshidi, Masoumeh Hassanpour
BACKGROUND: Arteriovenous malformations are one of the most common vascular disorders of the colon. Vascular disorders present as painless, high-volume rectal bleeding. CASE PRESENTATION: This study elucidates two rare cases of vascular disorders that are diagnosed as angiodysplasia of the left colon and cavernous hemangioma of the colon and rectum. The chief complaint in two patients was rectorrhagia. The patients who were diagnosed of ulcerative colitis were treated with sulfadiazine and prednisone...
2017: Caspian Journal of Internal Medicine
https://www.readbyqxmd.com/read/28503077/an-unusual-association-of-headache-epilepsy-and-late-onset-kleist-s-pseudodepression-syndrome-in-frontal-lobe-cavernoma-of-the-cerebral-left-hemisphere
#5
Domenico Chirchiglia, Attilio Della Torre, Domenico Murrone, Pasquale Chirchiglia, Rosa Marotta
Cerebral cavernous angioma or cavernoma is a benign vascular malformation, usually asymptomatic. It is infrequent and often its discovery is incidental, a so-called incidentaloma. However, these lesions can be symptomatic, causing headaches, epilepsy, cerebral hemorrhage and other neurological signs depending on the brain area involved. Frontal localization is responsible for psychiatric disorders, particularly the prefrontal region, leading to prefrontal syndrome, a condition common in all frontal lobe tumors...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28501042/behavior-changes-and-gait-unsteadiness-the-value-of-imaging-and-prompt-neurosurgical-intervention
#6
Andreia Costa, Cláudia Marques-Matos, Carina Reis, Marta Carvalho, Madalena Pinto
Cavernous angiomas are central nervous system malformations. Most common manifestations are seizures and acute focal neurological deficits. We present a case report of a seventy-one year-old man with a two-month history of behavior changes, attention deficit and indifference followed by gait unsteadiness. Neuropsychological evaluation showed severe cognitive impairment and executive dysfunction. Head computed tomography depicted a supraventricular hydrocephaly. Magnetic resonance imaging revealed a small hemorrhage, contiguous to a mesencephalic cavernous angioma, obstructing the Sylvius aqueduct, causing secondary hydrocephalus...
January 31, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28500274/combined-hmg-coa-reductase-and-prenylation-inhibition-in-treatment-of-ccm
#7
Sayoko Nishimura, Ketu Mishra-Gorur, JinSeok Park, Yulia V Surovtseva, Said M Sebti, Andre Levchenko, Angeliki Louvi, Murat Gunel
Cerebral cavernous malformations (CCMs) are common vascular anomalies that develop in the central nervous system and, more rarely, the retina. The lesions can cause headache, seizures, focal neurological deficits, and hemorrhagic stroke. Symptomatic lesions are treated according to their presentation; however, targeted pharmacological therapies that improve the outcome of CCM disease are currently lacking. We performed a high-throughput screen to identify Food and Drug Administration-approved drugs or other bioactive compounds that could effectively suppress hyperproliferation of mouse brain primary astrocytes deficient for CCM3...
May 12, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28499904/completely-thrombosed-distal-middle-cerebral-artery-aneurysm-mimicking-a-cavernous-angioma-case-report-and-review-of-the-literature
#8
Sokol Trungu, Placido Bruzzaniti, Stefano Forcato, Marco Cimatti, Antonino Raco
BACKGROUND: Distal middle cerebral artery (MCA) aneurysms originate from branches of MCA distal to its main bifurcation or the peripheral branches. Distal MCA aneurysms are uncommon compared to saccular aneurysms developing along the proximal trunks of MCA. However, thrombotic aneurysms, characterized by organized intraluminal thrombus and solid mass, are frequently in the large and giant size range, while complete thrombosis of non-giant MCA aneurysms is very rare. CASE PRESENTATION: We present the clinical case of a 53 years-old woman with a completely thrombosed medium distal MCA aneurysm which mimics a cavernous angioma...
May 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28492932/population-based-prevalence-of-cerebral-cavernous-malformations-in-older-adults-mayo-clinic-study-of-aging
#9
Kelly D Flemming, Jonathan Graff-Radford, Jeremiah Aakre, Kejal Kantarci, Giuseppe Lanzino, Robert D Brown, Michelle M Mielke, Rosebud O Roberts, Walter Kremers, David S Knopman, Ronald C Petersen, Clifford R Jack
Importance: The prevalence of cerebral cavernous malformation (CCM) is unknown. Case ascertainment in most previous studies was based on autopsy data or clinical convenience samples, often without detailed clinical or radiologic information. Objective: To determine the prevalence of CCM in a population-based sample of older adults. Design, Setting, and Participants: This prospective imaging study included 4721 participants aged 50 to 89 years who were enrolled between January 1, 2004, and December 15, 2015, in the Mayo Clinic Study of Aging, a longitudinal, population-based study of residents of Olmsted County, Minnesota...
May 8, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28489816/endothelial-tlr4-and-the-microbiome-drive-cerebral-cavernous-malformations
#10
Alan T Tang, Jaesung P Choi, Jonathan J Kotzin, Yiqing Yang, Courtney C Hong, Nicholas Hobson, Romuald Girard, Hussein A Zeineddine, Rhonda Lightle, Thomas Moore, Ying Cao, Robert Shenkar, Mei Chen, Patricia Mericko, Jisheng Yang, Li Li, Ceylan Tanes, Dmytro Kobuley, Urmo Võsa, Kevin J Whitehead, Dean Y Li, Lude Franke, Blaine Hart, Markus Schwaninger, Jorge Henao-Mejia, Leslie Morrison, Helen Kim, Issam A Awad, Xiangjian Zheng, Mark L Kahn
Cerebral cavernous malformations (CCMs) are a cause of stroke and seizure for which no effective medical therapies yet exist. CCMs arise from the loss of an adaptor complex that negatively regulates MEKK3-KLF2/4 signalling in brain endothelial cells, but upstream activators of this disease pathway have yet to be identified. Here we identify endothelial Toll-like receptor 4 (TLR4) and the gut microbiome as critical stimulants of CCM formation. Activation of TLR4 by Gram-negative bacteria or lipopolysaccharide accelerates CCM formation, and genetic or pharmacologic blockade of TLR4 signalling prevents CCM formation in mice...
May 10, 2017: Nature
https://www.readbyqxmd.com/read/28488085/novel-loss-of-function-mutation-in-krit1-ccm1-is-associated-with-distinctly-progressive-cerebral-and-spinal-cavernous-malformations-after-radiochemotherapy-for-intracranial-malignant-germ-cell-tumor
#11
Alexandra Russo, Marie Astrid Neu, Johanna Theruvath, Bettina Kron, Arthur Wingerter, Silla Hey-Koch, Yasemin Tanyildizi, Joerg Faber
PURPOSE: Cerebrospinal cavernous malformations (CCMs) are vascular lesions characterized by dilated and leaky capillary caverns. CCMs can cause seizures, focal neurological deficits or acute intracranial hemorrhage; however, most patients are asymptomatic. CCMs occur either sporadically or as a familial autosomal-dominant disorder. We present a clinical and molecular study of a patient with distinctive cerebral and spinal cavernous malformations following radiochemotherapy for a malignant brain tumor...
May 9, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28460204/agenesis-of-the-internal-carotid-artery-a-family-pathology
#12
F M Perla, G Carbotta, D Di Nardo, M D'Avanzo, M C Colaiacomo, C Di Biasi, L Falvo, S Carbotta, A Maturo, F Tartaglia, L Tromba
The internal carotid artery agenesis is a rare malformation disorder. We report the case of a 12-year-old boy suffering migraine, who had presented an episode featuring amaurosis fugax, spontaneously regressed. CT angiography images show hypoplasia of the left common carotid artery with loss of opacification of the left internal carotid artery consistent to agenesis. Moreover CT scans through the skull base demonstrate absence of left petrous carotid canal and an hypertrophic left middle cerebral artery originating from an aberrant artery arising from the right cavernous carotid...
January 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28458826/diffuse-vascular-malformation-of-large-intestine-clinically-and-radiologically-misdiagnosed-as-ulcerative-colitis
#13
Dilasma Ghartimagar, Arnab Ghosh, Manish Kiran Shrestha, Bishow Deep Timilsina, Sushma Thapa, Op Talwar
Hemangiomas and vascular malformations of the gastrointestinal tract are rare clinical entities that usually present as overt or occult bleeding. They can be distributed throughout the gastrointestinal system, or present as a singular cavernous hemangioma. Overall, 80% of such malformations are of cavernous subtype and are misdiagnosed as hemorrhoids and ulcerative colitis. Mucosal edema, nodularity and vascular congestion can lead to the incorrect diagnosis of inflammatory bowel disease. We present a case of 26-year-old male who presented with pain abdomen, bleeding per rectum and was treated as a case of ulcerative colitis for past 12 years on the basis of clinical and radiological features...
February 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28445174/obstetric-anesthesia-for-a-pregnant-woman-with-brainstem-cavernous-malformations-a-case-report
#14
Misuzu Hayashi, Manabu Kakinohana
There are no well-defined guidelines for obstetric and anesthetic management of pregnant patients with cerebral cavernous malformations (CMs). We need to pay careful attention to the attendant risks of both general and neuraxial anesthesia in this population. Here, we describe the anesthetic management of a pregnant woman with brainstem CMs who underwent cesarean delivery. We selected a general anesthetic technique because of concerns of undesirable effects of neuraxial anesthesia in the presence of cerebral CMs...
April 25, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28432261/ccm2-and-pak4-act-downstream-of-atrial-natriuretic-peptide-signaling-to-promote-cell-spreading
#15
Koichi Miura, Takashi Nojiri, Yoshiharu Akitake, Koji Ando, Shigetomo Fukuhara, Masahiro Zenitani, Toru Kimura, Jun Hino, Mikiya Miyazato, Hiroshi Hosoda, Kenji Kangawa
Atrial natriuretic peptide (ANP) is a cardiac hormone released by the atrium in response to stretching forces. Via its receptor, guanylyl cyclase-A (GC-A), ANP maintains cardiovascular homeostasis by exerting diuretic, natriuretic, and hypotensive effects mediated in part by endothelial cells. Both in vivo and in vitro , ANP enhances endothelial barrier function by reducing RhoA activity and reorganizing the actin cytoskeleton. We established mouse endothelial cells that stably express GC-A, and used them to analyze the molecular mechanisms responsible for actin reorganization...
April 21, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28413738/high-energy-trauma-precipitating-intramedullary-cavernous-malformation-hemorrhage-a-possible-underreported-mechanism
#16
Pedro Aguilar-Salinas, Douglas Gonsales, Leonardo B Brasiliense, Eric Sauvageau, Ricardo A Hanel
Cavernous malformations are uncommon vascular lesions with an estimated prevalence of 0.5% in the general population. Intramedullary cavernous malformations (ICM) represent a rare subset of lesions, which account for approximately 5% of all cavernous malformations. The annual risk of hemorrhage in ICMs has been reported to range from 1.4 to 6.8%. Most patients are diagnosed with neurological dysfunction secondary to ICM hemorrhage and little is known about the inciting events that lead to hemorrhage. A few studies have suggested that minor and major trauma or even intense exertion may increase the risk of hemorrhage...
March 13, 2017: Curēus
https://www.readbyqxmd.com/read/28402473/cavernous-malformation-associated-with-arterialized-developmental-venous-anomaly-a-case-report
#17
Kenta Nakase, Yasushi Motoyama, Tokiko Nakai, Yasuhiro Takeshima, Ichiro Nakagawa, Young-Su Park, Chiho Ohbayashi, Hiroyuki Nakase
BACKGROUND AND IMPORTANCE: Formation of cavernous malformations (CMs) has been recognized to be associated with developmental venous anomaly (DVA) by many authors. Hemodynamic stress due to venous outflow restriction could be hypothesized as a cause. On the other hand, a rare subgroup of DVA with an arterial component has been reported as likely to hemorrhage or be symptomatic. Cases of arterialized DVAs reported previously have not been associated with the presence of CM. CLINICAL PRESENTATION: We present herein a case report of arterialized DVA in the brainstem with repeated cerebellar hemorrhage...
June 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28399335/recent-advances-in-orbital-tumors-a-review-of-publications-from-2014-2016
#18
Santosh G Honavar, Fairooz P Manjandavida
The aim of this review article is to provide an update of the current literature on orbital tumors. The authors conducted a PubMed literature search of English language articles published between January 2014 and December 2016 using the following search items: orbit, tumors, lacrimal gland, lymphoma, hemangioma, lymphangioma. The authors included reviews, original articles, case series, and case reports with relevant new information. There is new information about the clinical spectrum of orbital tumors, capillary hemangioma, cavernous hemangioma, lymphangioma, orbital venous malformation, lacrimal gland tumors, and orbital lymphoma...
March 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28391022/reliable-the-value-of-early-postoperative-magnetic-resonance-imaging-after-ccm-surgery
#19
Bixia Chen, Sophia Göricke, Karsten Wrede, Ramazan Jabbarli, Max Jaegersberg, Ulrich Sure, Philipp Dammann
BACKGROUND: Cerebral cavernous malformations (CCM) can cause intracerebral hemorrhage. The lesions themselves are frequently associated with perifocal hemosiderin deposits due to repetitive microhemorrhages. Main indications for a surgical treatment are recurrent symptomatic hemorrhages or cavernoma-related epilepsy (CRE). After surgical resection, follow-up MR-imaging is usually performed to confirm a) the complete resection of the CCM and, especially in cases of CRE, b) the complete resection of the hemosiderin deposits...
April 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28388986/cerebral-cavernous-malformation-when-the-key-to-diagnosis-is-on-the-skin
#20
M M Escudero-Góngora, A Bauzá, A Giacaman, A Martín-Santiago
No abstract text is available yet for this article.
April 4, 2017: Actas Dermo-sifiliográficas
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