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  • Electronic Resource  (148)
  • 1995-1999  (148)
  • 1998  (67)
  • 1995  (81)
  • Magnetic resonance imaging  (148)
  • 1
    Electronic Resource
    Electronic Resource
    An unusual presentation of congenital infantile myofibromatosis arising from the interspinous ligament (1998)
    Springer
    Pediatric surgery international 14 (1998), S. 138-139 
    Details
    ISSN: 1437-9813
    Keywords: Key words Myofibromatosis ; Fibromatosis ; Soft-tissue tumor ; Interspinous ligament ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The authors describe an extremely rare presentation of congenital infantile myofibromatosis. A full-term newborn boy presented with a thumb-sized subcutaneous mass on the mid-spinal line between the 2nd and 3rd lumbar spinous processes. A solid tumor arising from the interspinous ligament was resected. Microscopic and immunohistochemical studies revealed myofibromatosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003830050463
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    MRI of spinal cord involvement in Behçet's disease: case report (1998)
    Springer
    Neuroradiology 40 (1998), S. 255-257 
    Details
    ISSN: 1432-1920
    Keywords: Key words Behçet's disease ; Spinal cord ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract MRI demonstrated well-defined areas of signal change and moderate contrast enhancement in the thoracic spinal cord of a patient with Behçet's disease presenting with subacute myelopathy. The patient improved after intravenous steroids, and MRI 5 months later showed a normal spinal cord.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050579
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Leukoencephalopathy with swelling in children and adolescents: MRI patterns and differential diagnosis (1995)
    Springer
    Neuroradiology 37 (1995), S. 679-686 
    Details
    ISSN: 1432-1920
    Keywords: Leukoencephalopathy ; White matter swelling ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In children, several neurological disorders are characterised by spongiform leukoencephalopathy. MRI of the brain typically shows white matter swelling, but does not enable differentiation of the various underlying disorders. The aim of this article is optimisation of the diagnostic value of MRI in leukoencephalopathy accompanied by swelling. MRI-based inclusion criteria were met by 20 patients in our database. The images were analysed using a detailed scoring list. In 13 of the 20 patients the clinical diagnosis was known (11 definite and 2 probable diagnoses). Characteristic MRI abnormalities could be defined in these patients. Of the 7 patients without a diagnosis, 5 had identical MRI abnormalities: difuse hemisphere swelling and typical cysts in frontoparietal subcortical white matter and the tips of the temporal lobes. The clinical picture was also similar in these patients, suggesting a similar disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00593394
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Leukoencephalopathy with swelling in children and adolescents: MRI patterns and differential diagnosis (1995)
    Springer
    Neuroradiology 37 (1995), S. 679-686 
    Details
    ISSN: 1432-1920
    Keywords: Key words Leukoencephalopathy ; White matter swelling ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In children, several neurological disorders are characterised by spongiform leukoencephalopathy. MRI of the brain typically shows white matter swelling, but does not enable differentiation of the various underlying disorders. The aim of this article is optimisation of the diagnostic value of MRI in leukoencephalopathy accompanied by swelling. MRI-based inclusion criteria were met by 20 patients in our database. The images were analysed using a detailed scoring list. In 13 of the 20 patients the clinical diagnosis was known (11 definite and 2 probable diagnoses). Characteristic MRI abnormalities could be defined in these patients. Of the 7 patients without a diagnosis, 5 had identical MRI abnormalities: diffuse hemisphere swelling and typical cysts in frontoparietal subcortical white matter and the tips of the temporal lobes. The clinical picture was also similar in these patients, suggesting a similar disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050179
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Assessment of T2- and T1-weighted MRI brain lesion load in patients with subcortical vascular encephalopathy (1998)
    Springer
    Neuroradiology 40 (1998), S. 503-506 
    Details
    ISSN: 1432-1920
    Keywords: Key words Vascular dementia ; Subcortical arteriosclerotic encephalopathy ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Previous cross-sectional studies in patients with subcortical vascular encephalopathy (SVE) have shown little or no correlation between brain lesion load and clinical disability, which could be due to the low specificity of T2-weighted MRI. Recent studies have indicated that T1-weighted MRI may be more specific than T2-weighted MRI for severe tissue destruction. We studied 37 patients with a diagnosis of SVE and 11 normal controls with standardised T1- and T2-weighted MRI. All patients underwent detailed clinical assessment including a neuropsychological test battery and computerised gait analysis. Both the T2- and T1-weighted total MRI lesion loads different between patients and controls different, particularly T1. The ratio of T2-/T1-weighted lesion load was lower in controls than in patients. There was no overall correlation of T1- or T2-weighted lesion load with clinical disability, but group comparison of patients with severe and mild clinical deficits showed different lesion loads. We suggest that T1- and T2-weighted MRI lesion loads demonstrate relevant structural abnormality in patients with SVE.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050633
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    High signal in the adenohypophysis on T1-weighted images presumably due to manganese deposits in patients on long-term parenteral nutrition (1998)
    Springer
    Neuroradiology 40 (1998), S. 793-796 
    Details
    ISSN: 1432-1920
    Keywords: Key words Brain ; basal ganglia ; Pituitary gland ; Manganese ; Parenteral nutrition ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Hypermanganesaemia is reported in patients on long-term parenteral nutrition. Deposition of manganese, giving high signal on T1-weighted images, may involve the basal ganglia. MRI in nine patients (mean age 51 years, range 31–75 years) on long-term parenteral nutrition (mean duration 30 months, range 6–126 months), demonstrated high signal in the anterior pituitary gland on T1-weighted sagittal and coronal images. The gland appeared normal on T2-weighted images. Signal intensity in the basal ganglia on T1-weighted images was increased in all patients. Endocrine assessment showed no significant abnormality. Neurological examination showed a mild parkinsonian movement disorder in one patient. Hypermanganaesemia was present in all nine (1.3–2.8 μmol/l, mean 1.87 μmol/l). The high signal in the anterior pituitary gland was probably related to deposition of paramagnetic substances, especially manganese.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050686
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Slow-growing labyrinthine masses: contribution of MRI to diagnosis, follow-up and treatment (1998)
    Springer
    Neuroradiology 40 (1998), S. 684-689 
    Details
    ISSN: 1432-1920
    Keywords: Key words Ear ; neoplasms ; Temporal bone ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report the use of MRI in the diagnosis, follow-up and therapeutic management of three cases of intralabyrinthine Schwannoma. The diagnosis was based on the history and initial and follow-up MRI findings. The main feature suggesting the diagnosis was a nodular intralabyrinthine mass of low signal intensity on T2-weighted images, and high or isointense signal on T1-weighted images (relative to cerebrospinal fluid), which showed contrast enhancement. Follow-up imaging showed growth of the tumour in one patient. One patient underwent surgery for severe tinnitus. To detect these lesions, MRI should be focussed on the inner ear, using thin-section T2-weighted and T1-weighted images before and after contrast medium. MRI allowed informed surgical planning.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050665
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Radiological assessment of necrosis in glioblastoma: variability and prognostic value (1998)
    Springer
    Neuroradiology 40 (1998), S. 150-153 
    Details
    ISSN: 1432-1920
    Keywords: Key words Glioblastoma ; necrosis ; Magnetic resonance imaging ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In a previous study, we found that the extent of necrosis was the only radiological feature which correlated significantly with survival in patients with glioblastoma. The aim of this paper was to evaluate the variability and prognostic value of the extent of the necrotic area as seen on contrast-enhanced MRI and CT in a larger series. We studied 72 patients who underwent surgical removal of supratentorial glioblastomas and had CT and/or MRI with contrast medium before surgery; 38, all undergoing the same treatment (surgery plus radiotherapy), were followed clinically. Necrosis within the tumour varied greatly, ranging from none (only 1 case) to involvement of 76 % of the tumour. Survival data in the subgroup suggested that only patients with a small area of necrosis (less than 35 % of the tumour) had a significantly longer survival time. When necrosis involved more than 35 % of the mass, patients had a shorter survival time, without any further correlation with the extent of necrosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050556
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Perichiasmatic granuloma occuring after radical mastoidectomy: MR findings (1998)
    Springer
    European radiology 8 (1998), S. 286-288 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Cholesteatoma ; Meningitis ; Granuloma ; Foreign bodies ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A case of chronic chemical meningitis occurring after a radical mastoidectomy is reported. Imaging and surgical findings were suggestive of a dissemination of cholesteatoma debris within the subarachnoid spaces. Chemical meningitis has been described in epidermoid and dermoid cyst rupture. This report illustrates that clinicians should be aware of this possible complication. Skull base imaging is mandatory before considering the diagnosis of idiopathic meningitis. Only treatment of the abnormal communication between cerebrospinal fluid and middle ear may eradicate the origin of this rare meningitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050381
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Laryngeal embryonal rhabdomyosarcoma in a child: MRI appearance (1998)
    Springer
    European radiology 8 (1998), S. 1251-1253 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Rhabdomyosarcoma ; Magnetic resonance imaging ; Larynx
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We report a rare case of a young girl with an embryonal rhabdomyosarcoma of the right aryepiglottic fold. Local disease recurrence, occurring 7 years after subtotal resection and adjuvant chemotherapy, was studied with plain radiography, CT and MRI. To the best of our knowledge, this is the first report illustrating the MRI characteristics of a laryngeal embryonal rhabdomyosarcoma in a child.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050544
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    Paper (German National Licenses)
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