scholarly journals Spontaneous Convexity Subarachnoid Hemorrhage Caused by Internal Carotid Occlusion: Radiological Features

2019 ◽  
Vol 39 (01) ◽  
pp. 016-017
Author(s):  
Benedito Jamilson Araújo Pereira ◽  
Radmila Agra Cariry Targino de Holanda ◽  
José Targino Neto ◽  
Luciano Ferreira de Holanda
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Internal Carotid ◽  
Digital Subtraction ◽  
Resonance Imaging ◽  
Left Hand ◽  
Internal Carotid Occlusion ◽  
Similar Report ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
The Brain

AbstractA 79-year-old patient was admitted to the emergency room with transitory monoparesis in the left hand and dysphasia. The brain computed tomography (CT) and magnetic resonance imaging (MRI) showed a spontaneous right convexity subarachnoid hemorrhage (cSAH). Digital subtraction angiography (DSA) confirmed an asymptomatic occlusion of the right internal carotid artery (ICA) . Cases related to stenosis have already been described, but there is no similar report of a case related to occlusion, even though the pathophysiology of both entities is similar. Atraumatic SAH has been associated with intracranial and extracranial artery stenosis.

Intrasellar Intercarotid Communicating Artery Associated with Agenesis of the Right Internal Carotid Artery: Case Report

Neurosurgery ◽  
1988 ◽  
Vol 23 (6) ◽  
pp. 770-773 ◽  
Author(s):  
Masahiko Udzura ◽  
Hiroo Kobayashi ◽  
Yoshio Taguchi ◽  
Hiroaki Sekino
Keyword(s):  
Magnetic Resonance Imaging ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Spatial Relationship ◽  
Resonance Imaging ◽  
Anomalous Artery ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Relationship Of

Abstract A 54-year-old man with a right hemiparesis was found to have an intrasellar intercarotid communicating artery associated with agenesis of the right internal carotid artery. Magnetic resonance imaging (MRI) studies demonstrated the spatial relationship of the anomalous artery to the surrounding structures, thus suggesting an embryonic enlargement of the capsular artery as a source of this anomalous artery.

Aspergillus meningitis and discitis from low-back procedures in an immunocompetent patient

2007 ◽  
Vol 48 (6) ◽  
pp. 687-689 ◽  
Author(s):  
A. B. Larson Kolbe ◽  
A. M. McKinney ◽  
A. Tuba Karagulle Kendi ◽  
D. Misselt
Keyword(s):  
Steroid Injection ◽  
Rare Complication ◽  
Immunocompetent Patient ◽  
Epidural Steroid Injection ◽  
Low Back ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Epidural Steroid ◽  
The Brain

We present a case of an immunocompetent patient who developed Aspergillus meningitis, subsequent to discitis, presumed to be from an epidural steroid injection. Magnetic resonance imaging (MRI) of the lumbar spine confirmed the diagnosis of discitis. Fluoroscopic-guided aspiration of the disc showed growth of Aspergillus fumigatus. MRI of the brain revealed involvement of the right third cranial nerve. Repeat MRIs demonstrated multiple leptomeningeal masses consistent with granulomatous meningitis. Meningitis is a rare complication of discitis, discogram, or epidural steroid injection. Aspergillus usually only infects immunocompromised patients, but rarely can affect immunocompetent patients.

Functional imaging of human motor cortex at high magnetic field

1993 ◽  
Vol 69 (1) ◽  
pp. 297-302 ◽  
Author(s):  
S. G. Kim ◽  
J. Ashe ◽  
A. P. Georgopoulos ◽  
H. Merkle ◽  
J. M. Ellermann ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Human Subjects ◽  
Resonance Imaging ◽  
High Field Strength ◽  
Human Motor Cortex ◽  
Left Hand ◽  
Normal Human ◽  
Human Motor ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

1. We used conventional gradient echo magnetic resonance imaging (MRI) at high field strength (4 Tesla) to functionally image the right motor cortex in six normal human subjects during the performance of a sequence of self-paced thumb to digit oppositions with the left hand (contralateral task), the right hand (ipsilateral task), and both hands (bilateral task). 2. A localized increase in activity in the lateral motor cortex was observed in all subjects during the task. The area of activation was similar in the contralateral and bilateral tasks but 20 times smaller in the ipsilateral task. The intensity of activation was 2.3 times greater in the contralateral than the ipsilateral task.

scholarly journals A 25-Year-Old Clinically Isolated Syndrome Patient with Tumefactive Demyelinating Lesion in Cervical Cord: A Case Report and a Mini Review

2020 ◽  
Vol 24 (3) ◽  
Author(s):  
Abdorreza Naser Moghadasi
Keyword(s):  
Clinically Isolated Syndrome ◽  
Daily Injection ◽  
Cervical Cord ◽  
Resonance Imaging ◽  
Blurred Vision ◽  
Tumefactive Demyelinating Lesion ◽  
Mog Antibodies ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
The Brain

: This study aimed to present a case of a clinically isolated syndrome (CIS) with a reported tumefactive demyelinating lesion (TDLs) in the cord. The patient was a 25-year-old woman who referred to MS Clinic complaining of walking impairment and a blurred vision in the right eye. In the magnetic resonance imaging (MRI) of the brain, there were several periventricular plaques, a significant portion of which had enhanced, but none of the lesions was tumefactive. In the cervical MRI, however, several tumefactive plaques appeared with a clear enhancement and expansion, which was central-based in the axial view. Concerning the involvement of the cervical cord, further examinations were conducted of anti-aquaporin and anti-myelin oligodendrocyte glycoprotein (MOG) antibodies, which were negative. The patient was treated with 1g methylprednisolone daily injection for five days; her symptoms recovered completely. Then, due to the extent of the involvement, rituximab was prescribed for her. Unlike the TDLs of the brain, little attention has been paid to these lesions in the cord. Here, firstly a case of CIS with a tumefactive lesion reported in the cord is investigated, and then, by examining similar cases, we try to find a definition for cord TDLs.

scholarly journals Magnetic resonance imaging of a cerebral cavernous haemangioma in a dog : clinical communication

2002 ◽  
Vol 73 (4) ◽  
Author(s):  
J.P. Schoeman ◽  
M.F. Stidworthy ◽  
J. Penderis ◽  
U. Kafka
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Cavernous Haemangioma ◽  
Resonance Imaging ◽  
Neurological Assessment ◽  
Clinical Communication ◽  
Right Cerebral Hemisphere ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
The Brain

A 13-month-old, neutered, male Golden retriever presented with seizures and progressive depression. Clinical and neurological assessment was consistent with severe intracranial disease. The neurological condition progressively deteriorated and magnetic resonance imaging (MRI) revealed the presence of a large, contrast-enhancing, space-occupying mass in the right cerebral hemisphere. Therapy with corticosteroids, mannitol and furosemide ameliorated the signs of depression and ataxia, but the owner elected euthanasia after 1 week. Post mortem examination of the brain confirmed the presence of a large haemorrhagic lesion in the right olfactory lobe, the histopathological appearance of which was consistent with cerebral cavernous haemangioma. This is the 1st case describing the MRI appearance of a cavernous haemangioma of the cerebrum in the veterinary literature.

scholarly journals Epidermoid cyst causing hemifacial spasm epidermoid cyst in cerebellopontine angle presenting with hemifacial spasm

2012 ◽  
Vol 03 (03) ◽  
pp. 344-346 ◽  
Author(s):  
Murat Alemdar
Keyword(s):  
Hemifacial Spasm ◽  
Epidermoid Cyst ◽  
Vascular Compression ◽  
Resonance Imaging ◽  
Mri Scan ◽  
Root Exit Zone ◽  
Cerebellar Peduncles ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
The Brain

ABSTRACTHemifacial Spasm (HS) occurs idiopathically or secondary to the lesions compressing the root exit zone of the facial nerve symptomatically. Symptomatic HS is generally due to vascular compression. We report on a 23-year-old male with right sided HS for a month. Magnetic resonance imaging (MRI) of the brain revealed a well-demarcated epidermoid cyst in the right cerebellopontine cistern. It was hypointense on T1-weighted imaging, hyperintense on T2-weighted imaging without contrast enhancement, hyperintense on DWI, and slightly hypointense on ADC relative to the brain. Although it caused shifting of the pons and medulla to the left side and compression of the right cerebellar peduncles and fourth ventricle, the sole symptom of the patient was HS. Clinicians are advised to request MRI/scan for brainstem lesions from the patients with HS. Epidermoid cysts in cerebellopontine cistern may present with HS as the sole symptom.

scholarly journals Neurobiology of developmental dyslexia Part 2: A review of magnetic resonance imaging (MRI) studies of the corpus callosum

2012 ◽  
Vol 71 (2) ◽  
Author(s):  
S. O. Wajuihian
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Corpus Callosum ◽  
Developmental Dyslexia ◽  
Right Hemisphere ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
The Brain

This paper forms part two of a review of the neurobiology of developmental dyslexia (DD) and here the focus is on magnetic resonance imaging (MRI)of the corpus callosum (CC) of dyslexic and non-dyslexic subjects. The CC is a bundle of nerve fibres connecting the left and the right hemisphere of the brain. Due to the role of this structure in inter-hemispheric transfer and integration between the hemispheres, the CC is significant in the search for the neurobiological basis of DD. (S Afr Optom 2012 71(1) 39-45)

scholarly journals Thrombocytopenia with acute ischemic stroke and bleeding in a patient newly vaccinated with an adenoviral vector-based COVID-19 vaccine

2021 ◽  
Author(s):  
Rolf Ankerlund Blauenfeldt ◽  
Søren Risom Kristensen ◽  
Siw Leiknes Ernstsen ◽  
Claudia Christina Hilt Kristensen ◽  
Claus Ziegler Simonsen ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Internal Carotid ◽  
Reperfusion Therapy ◽  
Resonance Imaging ◽  
Platelet Factor ◽  
Heparin Induced Thrombocytopenia ◽  
Immune Mediated ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
D Dimer

Abstract We describe the first Danish case of presumed inflammatory and thrombotic response to vaccination with an adenoviral (ChAdOx1) vector based COVID-19 vaccine (AZD1222). The case describes a 60-year old woman, who was admitted with intractable abdominal pain seven days after receiving the vaccine. Computer Tomography (CT) of the abdomen revealed bilateral adrenal hemorrhages. On the following day she developed a massive right sided ischemic stroke and Magnetic Resonance Imaging (MRI) angiography showed occlusion of the right internal carotid artery. The ischemic area was deemed too large to offer reperfusion therapy. During admission, blood tests showed a remarkable drop in platelet counts from 118,000 to 5,000 per µL and a substantial increase in D-dimer. The patient died on the 6th day of hospitalization. Blood test revealed platelet factor 4 (PF-4) reactive antibodies, imitating what is seen in heparin-induced thrombocytopenia. This may be a novel immune mediated response to the vaccine.

scholarly journals Visual Loss Induced by Adalimumab Used for Plaque Psoriasis

2017 ◽  
Vol 9 (1) ◽  
pp. 60-64 ◽  
Author(s):  
Norman Saffra ◽  
Konstantin Astafurov
Keyword(s):  
Plaque Psoriasis ◽  
Visual Loss ◽  
Joint Involvement ◽  
Resonance Imaging ◽  
Adalimumab Therapy ◽  
Retrobulbar Optic Neuritis ◽  
Cns Demyelination ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
The Brain

A 61-year-old Caucasian male with severe plaque psoriasis without joint involvement was initiated on adalimumab therapy. Shortly thereafter he presented to the emergency room with acute loss of vision in the right eye. A comprehensive systemic workup was instituted which included magnetic resonance imaging (MRI) with and without gadolinium of the brain and orbits. MRI revealed findings that were consistent with CNS demyelination and retrobulbar optic neuritis. Immediate cessation of adalimumab was instituted without any other systemic therapy. Complete return of vision occurred within 6 weeks. No additional psoriatic or neurologic treatment was instituted, and the patient has remained stable now for 14 months.

scholarly journals Neurobiology of developmental dyslexia Part 2: A review of magnetic resonance imaging (MRI) studies of the corpus callosum

2012 ◽  
Vol 71 (1) ◽  
Author(s):  
S. O. Wajuihian
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Corpus Callosum ◽  
Developmental Dyslexia ◽  
Right Hemisphere ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
The Brain

This paper forms part two of a review of the neurobiology of developmental dyslexia (DD) and here the focus is on magnetic resonance imaging (MRI) of the corpus callosum (CC) of dyslexic and non-dyslexic subjects. The CC is a bundle of nerve fibres connecting the left and the right hemisphere of the brain. Due to the role of this structure in inter-hemispheric transfer and integration between thehemispheres, the CC is significant in the search for the neurobiological basis of DD. (S Afr Optom 2012 71(1) 39-45)

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