scholarly journals The Computerized Tomographic Appearance of Angiographically Occult Arteriovenous Malformations of the Brain

1981 ◽  
Vol 8 (1) ◽  
pp. 7-13 ◽  
Author(s):  
Richard Leblanc ◽  
Roméo Ethier
Keyword(s):  
Intracerebral Hemorrhage ◽  
Arteriovenous Malformation ◽  
Ct Scan ◽  
Lateral Ventricle ◽  
Arteriovenous Malformations ◽  
High Density ◽  
Computed Tomographic ◽  
Ct Examination ◽  
Vascular Enhancement ◽  
The Brain

SUMMARYEight patients with a histologically proven angiographically occult arteriovenous malformation of the brain had plain and infused computed tomographic (CT) examinations. In five cases angiography revealed a hypovascular mass and in three cases the angiogram was normal. On CT examination a high density lesion (six cases) and ventricular asymmetry (five cases) were demonstrated. In three patients presenting with intracerebral hemorrhage, the high density appearance and ventricular compression were accounted for by the presence of hematoma. In three of five seizure patients the high density lesion was associated with calcification while ipsilateral (one case) and contralateral (one case) enlargement of the lateral ventricle was seen. In five of the eight cases the vascular nature of the lesion was suggested by vascular enhancement of the infused CT scan. Glioma was a common misdiagnosis.

Arteriovenous malformations in the posterior fossa

1977 ◽  
Vol 47 (1) ◽  
pp. 50-56 ◽  
Author(s):  
Hiroshi Matsumura ◽  
Yasumasa Makita ◽  
Kuniyuki Someda ◽  
Akinori Kondo
Keyword(s):  
Arteriovenous Malformation ◽  
Brain Stem ◽  
Posterior Fossa ◽  
Arteriovenous Malformations ◽  
Cerebellopontine Angle ◽  
Anterior Part ◽  
Content Type ◽  
The Brain ◽  
Fine Print

✓ We have operated on 12 of 14 cases of arteriovenous malformation (AVM) in the posterior fossa since 1968, with one death. The lesions were in the cerebellum in 10 cases (three anteromedial, one central, three lateral, and three posteromedial), and in the cerebellopontine angle in two; in two cases the lesions were directly related to the brain stem. The AVM's in the anterior part of the cerebellum were operated on through a transtentorial occipital approach.

scholarly journals Successful treatment of bilateral multiple pulmonary arteriovenous malformations in a patient with brain abscess and severe hypoxemia using a combination of transcatheter embolotherapy and surgical resection: a case report

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Takahiro Ochi ◽  
Masako Chiyo ◽  
Takamasa Ito ◽  
Hideharu Furumoto ◽  
Toshihiko Sugiura ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Brain Abscess ◽  
Surgical Resection ◽  
Arteriovenous Malformations ◽  
Pulmonary Arteriovenous Malformation ◽  
Positive Pressure ◽  
Pulmonary Arteriovenous Malformations ◽  
Severe Hypoxemia ◽  
History Of ◽  
The Brain

Abstract Background A pulmonary arteriovenous malformation is an abnormal dilated blood vessel that makes direct communication between a pulmonary artery and pulmonary vein and can be associated with hypoxemia or neurological complications, including brain abscess and cerebral infarction. Treatment of pulmonary arteriovenous malformation includes surgical resection and transcatheter embolotherapy, however the adaptation of therapies should be considered when a patient is in bad condition. Case presentation A 51-year-old man was admitted after developing fever, consciousness disorder, and hypoxemia. Magnetic resonance imaging of the brain showed a brain abscess. Bilateral pulmonary arteriovenous malformations were found by contrast computed tomography. Because of a family history of pulmonary arteriovenous malformation, a history of epistaxis, and the existence of oral mucosa telangiectasia, he was diagnosed with hereditary hemorrhagic telangiectasia and brain abscess caused by intrapulmonary right-to-left shunt. The brain abscess improved with antibiotic treatment; however, the administration of oxygen did not ameliorate his hypoxemia. His hypoxemia was exacerbated by positive pressure ventilation. Considering his systemic and respiratory condition, we considered surgery to involve a high degree of risk. After controlling his brain abscess and pneumonia, transcatheter embolotherapy was performed. This improved his systemic condition, enabling surgical treatment. Conclusions This middle-aged patient suffering from brain abscess and severe hypoxemia with multiple pulmonary arteriovenous malformations was successfully treated by a combination of transcatheter embolotherapy and surgery. The adaptation and combination of therapies, as well as the sequence of treatments, should be considered depending on the patient status and lesions.

Craniopharyngioma

Neurosurgery ◽  
1981 ◽  
Vol 9 (1) ◽  
pp. 76-78 ◽  
Author(s):  
Maurice H. Lipper ◽  
Pulla R. S. Kishore ◽  
John D. Ward
Keyword(s):  
Ct Scan ◽  
Clinical Analysis ◽  
High Density ◽  
Computed Tomographic ◽  
Ct Findings ◽  
Suprasellar Region

abstract Craniopharyngioma usually presents on a computed tomographic (CT) scan as a hypodense or isodense lesion, with calcification, in the suprasellar region. A case with atypical CT findings of a huge, homogeneous, high density, apparently solid, lobulated suprasellar mass is presented. An explanation for the appearance of the tumor is discussed based upon clinical analysis of the tumor contents.

Unruptured Eloquent Arteriovenous Malformation Presenting with Arm Weakness

2019 ◽  
pp. 215-224
Author(s):  
Adeel Ilyas ◽  
Dale Ding ◽  
Matthew J. Shepard ◽  
Jason P. Sheehan
Keyword(s):  
Arteriovenous Malformation ◽  
Arteriovenous Malformations ◽  
Inverse Relationship ◽  
Medical Condition ◽  
Noninvasive Treatment ◽  
Neurological Morbidity ◽  
Treatment Volume ◽  
Work Up ◽  
The Brain ◽  
Surgical Extirpation

Abstract: Cerebral arteriovenous malformations are often located in regions of the brain that are not surgically accessible, or they are found in patients who are not candidates for microsurgery. If the expected neurological morbidity of surgical extirpation is unacceptably high, or if the patient’s medical condition presents an unacceptable risk for surgery, either conservative management or radiosurgery should be offered. Stereotactic radiosurgery provides a noninvasive treatment of such lesions and should be considered in the discussion of management of all arteriovenous malformations. Customization of treatment strategy to each arteriovenous malformation is necessary, as obliteration rates and complications share an inverse relationship depending on treatment volume and radiation dose. This chapter presents the key considerations in the work-up and radiosurgical management of patients with arteriovenous malformations.

Familial occurrence of arteriovenous malformation of the brain

1991 ◽  
Vol 74 (4) ◽  
pp. 585-589 ◽  
Author(s):  
Kazutoshi Yokoyama ◽  
Yoshitaka Asano ◽  
Takatsugu Murakawa ◽  
Mitsuaki Takada ◽  
Takashi Ando ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Arteriovenous Malformations ◽  
Genetic Factors ◽  
High Rate ◽  
Familial Incidence ◽  
Brain Vessels ◽  
Content Type ◽  
Familial Cases ◽  
The Brain ◽  
Fine Print

✓ Brain arteriovenous malformations are considered to originate from a congenital maldevelopment of the brain vessels. Although there have been occasional reports suggesting a familial incidence of these lesions, data for only 10 families have been accumulated in the literature. The authors report on six such cases in three families. This high rate of occurrence of familial cases suggests an involvement of genetic factors.

Arteriovenous Malformations of the Cerebellar Vermis

Neurosurgery ◽  
1985 ◽  
Vol 16 (3) ◽  
pp. 341-349 ◽  
Author(s):  
Duke Samson ◽  
Hunt Batjer
Keyword(s):  
Arteriovenous Malformation ◽  
Arteriovenous Malformations ◽  
Operative Mortality ◽  
Cerebellar Vermis ◽  
Recurrent Bleeding ◽  
Computed Tomographic ◽  
Neurological Morbidity ◽  
Microsurgical Approach ◽  
Bleeding Episodes ◽  
4Th Ventricle

Abstract Fifteen cerebellar vermian arteriovenous malformations were surgically treated over a 7-year period. Intracranial hemorrhage was the presenting symptom in 73% of the cases and recurrent bleeding episodes occurred in 60%. Computed tomographic scans demonstrated the site of the malformation in 80% and documented the presence of intracerebral bleeding in all posthemorrhage patients. Angiography revealed two consistent patterns of arterial supply depending on the involvement by the malformation of the superior inferior cerebellar vermis. All lesions were surgically removed via a midline suboccipital posterior fossa microsurgical approach. Intraventricular extension of arteriovenous malformation was common, often in association with the choroid plexus of the 4th ventricle. Immediate postoperative angiography was used to document arteriovenous malformation removal. Three instances of unsuspected residual malformation were documented and required reexploration. The total operative mortality was 7%, and the neurological morbidity was 21%.

Civilian Occult Orbitocranial Penetrating Injury Presenting with Cerebral Abscess in Elderly Patient

2017 ◽  
Vol 14 (02/03) ◽  
pp. 145-148
Author(s):  
Mazhar Mulla ◽  
Bhagyashri Bhende ◽  
Swapnil Patil ◽  
Aditya Patil ◽  
Batuk Diyora
Keyword(s):  
Ct Scan ◽  
Mass Effect ◽  
Interesting Case ◽  
Penetrating Injury ◽  
Case Review ◽  
Computed Tomographic ◽  
Orbital Roof ◽  
Orbital Wall ◽  
The Right ◽  
The Brain

AbstractOrbital penetrating injuries are uncommon and occur following accidental entry of objects through orbit. The authors report an interesting case of right frontal abscess resulting from orbitocranial penetrating injury due to accidental penetration of wooden stick into the right eye, which remained undiagnosed. A 70-year-man presented with complaints of headache and vomiting for few days. His computed tomographic (CT) scan of the brain revealed peripheral rim-enhancing cystic lesion in the right frontal lobe with perilesional edema, mass effect, and midline shift. Orbital CT scan revealed hyperdense lesion just lateral to medial orbital wall. Magnetic resonance imaging of the brain showed cystic peripheral rim-enhancing lesion that was homogenous hypointense on T1-weighted images and homogenous hyperintense on T2-weighted images. The patient underwent right frontal craniotomy. Pus was drained out, and abscess wall was excised. Foreign bodies protruding through fractured orbital roof were found and removed. He made good clinical recovery. He has received intravenous antibiotics for 2 weeks followed by 4 weeks of oral antibiotics. He had no visual symptoms. The authors report the case, review the literature, and highlight need for imaging in every case of orbital penetrating injury to prevent the life-threatening cerebral parenchymal complications.

EXTERNAL VENTRICULAR DRAIN INSERTION ACCURACY

Neurosurgery ◽  
2009 ◽  
Vol 65 (6) ◽  
pp. 1197-1201 ◽  
Author(s):  
Ahmed K. Toma ◽  
Sophie Camp ◽  
Laurence D. Watkins ◽  
Joan Grieve ◽  
Neil D. Kitchen
Keyword(s):  
Lateral Ventricle ◽  
External Ventricular Drain ◽  
Third Ventricle ◽  
Length Of Hospital Stay ◽  
Brain Parenchyma ◽  
The Body ◽  
Neurosurgical Procedure ◽  
Computed Tomographic ◽  
Frontal Horn ◽  
The Brain

Abstract OBJECTIVE Free-hand insertion of an external ventricular drain (EVD) is a common emergency neurosurgical procedure, mostly performed for critically ill patients. Although EVD complications have been studied thoroughly, the accuracy of EVD positioning has been audited only occasionally. METHODS Post-EVD insertion computed tomographic scans performed in our unit over a 2-year period were analyzed for EVD tip location and intracranial catheter length. RESULTS A total of 183 post-EVD insertion scans were reviewed. Of those, 73 EVD tips (39.9%) were in the ipsilateral frontal horn of the lateral ventricle (the desired target); of those, 18 (25%) required EVD revision/reinsertion. Of the others, 35 (19.1%) were in the third ventricle, 33 (18%) in the body of the lateral ventricle, 19 (10.4%) in the subarachnoid space, 5 (2.7%) in the contralateral frontal horn, and 18 (9.8%) within the brain parenchyma. When the EVD tip was outside the desired target, 44 of the patients (40%) required EVD revision/reinsertion procedure (P = 0.0383). CONCLUSION Free-hand insertion of an EVD is an inaccurate procedure, and further studies are required to assess the accuracy and feasibility of the routine use of neuronavigation, ultrasonography, or other guidance techniques and the possible implication of the decreasing revision rate, complications, and length of hospital stay.

scholarly journals Comparison of Clinical Diagnosis of Stroke with Computed Tomographic Scan of the Brain

2013 ◽  
Vol 28 (2) ◽  
pp. 96-101
Author(s):  
Sirajee Shafiqul Islam ◽  
Aminur Rahman ◽  
Md Manzur Alahi ◽  
Md Ahmed Ali ◽  
Md Kafiluddin ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ischemic Stroke ◽  
Positive Predictive Value ◽  
Intracerebral Hemorrhage ◽  
Ct Scan ◽  
Clinical Diagnosis ◽  
Predictive Value ◽  
Hemorrhagic Stroke ◽  
Sensitivity Specificity ◽  
The Brain

Background and purpose: Stroke is a leading cause of mortality and morbidity in both developed as well as developing countries. The clinical presentation of stroke depending on the site and extent of lesions. For the management purpose it is important to know whether we are dealing with a bleed or an infarct. Methodology: Computed Tomography (CT scan) is available most of the tertiary level hospitals in Bangladesh. This study was carried out to compare clinical diagnosis of stroke with Computed tomography (CT) scan findings in ascertaining the type of stroke (hemorrhagic or ischemic). Materials and methods: This cross-sectional comparative study was conducted in the Department of Neurology, Rajshahi Medical College Hospital during the period of January 2010 to December 2010. Total 200 stroke patients were selected by purposive sampling technique on the basis of inclusion and exclusion criteria as the study sample. . CT brain scan was done for all the patients. The clinical diagnosis was compared with the results of CT scan and performance test was done. Results: Clinically 67 patients were diagnosed as hemorrhagic stroke and 133 patients were diagnosed as ischemic stroke. Out of these 67 hemorrhagic patients CT scan revealed that 56 patients had intracerebral hemorrhage, 5 had infarct, 4 had subarachnoid hemorrhage and 2 had space occupying lesions in the brain. Out of these 133 ischemic patients CT scan revealed that 119 patients had infarction, 6 had intracerebral hemorrhage and 8 had space occupying lesions in the brain. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of clinical diagnosis of hemorrhagic stroke were 90.32%, 92.03%, 83.58%, 92.02% and 91.5% respectively. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of clinical diagnosis of ischemic stroke were 95.96%, 81.58%, 89.47%, 92.53% and 90.5% respectively. Conclusion: The diagnosis of stroke in clinically with high accuracy, but perform a CT scan will help to confirm and differentiate to type stroke. Thus CT scan should be done in all cases stroke to specify the diagnosis. DOI: http://dx.doi.org/10.3329/bjn.v28i2.17179 Bangladesh Journal of Neuroscience 2012; Vol. 28 (2): 96-101

scholarly journals Galvos smegenų arterioveninės malformacijos

2009 ◽  
Vol 7 (3-4) ◽  
pp. 0-0
Author(s):  
Irena Bičkutė ◽  
Mindaugas Avižonis
Keyword(s):  
Arteriovenous Malformation ◽  
Vascular Disease ◽  
Key Words ◽  
Arteriovenous Malformations ◽  
Regional Hospital ◽  
Capillary Network ◽  
Physiological Changes ◽  
Brain Avm ◽  
Life Threatening ◽  
The Brain

Irena Bičkutė1, Mindaugas Avižonis21 Švenčionių rajono ligoninė, Partizanų g. 4, LT-18126 Švenčionys2 Mykolo Marcinkevičiaus ligoninė, Kauno g. 7/2, LT-03215 VilniusEl paštas: [email protected] Galvos smegenų arterioveninė malformacija (AVM) – įgimta smegenų patologija, kuriai būdingos patologinės arterijų ir venų jungtys, kuriomis arterinis kraujas patenka į smegenų venas, aplenkdamas normalų kapiliarų tinklą. Ši patologija reta, tačiau sukelia daug anatominių ir fiziologinių pokyčių, kelia pavojų gyvybei. Straipsnyje trumpai aprašoma AVM paplitimas, kilmė, patologija, klinika, diagnostika ir gydymas. Reikšminiai žodžiai: galvos smegenų arterioveninė malformacija, etiologija, epidemiologija, klinika, diagnostika, gydymas. Arteriovenous malformations of the brain Irena Bičkutė1, Mindaugas Avižonis21 The Švenčioniai Regional Hospital, Partizanų g. 4, LT-18126 Švenčionys, Lithuania2 The Mykolas Marcinkevičius Hospital, Kauno str. 7/2, LT-03215 Vilnius, LithuaniaE-mail: [email protected] Arteriovenous malformation (AVM) of the brain is a congenital vascular disease and has three morphologic components: the dysplastic vascular nidus, the feeding arteries, and the draining veins. The underlying lesion appears to represent a perpetuation of primitive arteriovenous communications which normally should be replaced by an intervening capillary network. AVM is potentially life-threatening and causes many anatomical and physiological changes. This article contains a description of epidemiology, etiology, pathology, clinic, diagnostics and treatment of brain AVM. Key words: arteriovenous malformation of the brain, etiology, epidemiology, clinic, diagnostics, treatment

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