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  • 1
    Electronic Resource
    Electronic Resource
    Aortic pathology revealed by MRI in patients with clinical suspicion of spinal disease (1993)
    Springer
    Neuroradiology 35 (1993), S. 499-502 
    Details
    ISSN: 1432-1920
    Keywords: Magnetic resonance imaging ; Spine ; Aortic disease ; Aortic aneurysm ; Aortic dissection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In five patients with clinical suspicion of spinal disease, MRI of the spine revealed unexpected aortic pathology explaining the symptoms. No significant intraspinal pathology was found on MRI. However, in one patient with clinical suspicion of spinal stenosis, an aortic occlusion was detected on MR images of the spine. The lower extremity ischaemia, caused by the occlusion, was responsible for the symptoms. In another patient a paravertebral haematoma from a ruptured aortic aneurysm resulted in spinal nerve compression, thought before MRI to be caused by a spinal tumour. In three patients aortic aneurysm or dissection resulted in spinal cord ischaemia with symptoms mimicking those of compressive spinal disease. Thus, if MRI of the spine does not provide an explanation for the patient's symptoms, examination of the aorta is recommended.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588705
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A ring-enhancing metastasis with central high signal on diffusion-weighted imaging and low apparent diffusion coefficients (2000)
    Springer
    Neuroradiology 42 (2000), S. 824-827 
    Details
    ISSN: 1432-1920
    Keywords: Key words Magnetic resonance imaging ; diffusion-weighted ; Abscess ; brain ; Tumour ; brain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Diffusion-weighted imaging (DWI) has been reported to be useful in the differential diagnosis between abscesses and cystic or necrotic tumours. However, experience is still limited and the true sensitivity and specificity remain to be determined. Our purpose is to describe a ring-enhancing metastasis of adenocarcinoma with a DWI pattern similar to that reported for abscesses. The tumour had a diameter of 1.5 cm and give signal from its centre similar to that of normal brain on T1-weighted images, whereas it was increased on T2-weighted images, and surrounded by a low signal ring, suggesting a capsule. The signal was high on DWI and the apparent diffusion coefficient (ADC) was low (0.55 × 10–3 mm2/s). The findings were misinterpreted as representing an abscess in the early capsule-formation stage, but the signal pattern probably represented early tumour necrosis with intracellular oedema, but without liquefaction. Findings on DWI during the early capsule formation stage in abscesses and early tumour necrosis are probably similar and must be interpreted with caution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340000431
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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