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Initial MR studies showed intramedullary high signal on T2-weighted sequences with poorly defined marginal enhancement on T1 weighted images. On followup contrast-enhanced T1-weighted studies,the lesions had well- defined enhancing margins with central low signal intensity.After the initiation of therapy,T2 signal abnormalities decreased markedly and contrast-enhanced studies showed ring enhancement.These T1 findings resolved with treatment over serial studies in four patients.The organisms identified were Streptococcus milleria,S pyogenes,atypical mycobacteria, Mycobacterium tuberculosis and Schistosoma mansoni(both children).A characteristic sequence of imaging findings aids in the differentiation of cord infection from other intramedullary lesions. |
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abscess,spinal cord
central nervous system,infection of
children
conus medullaris,lesion of
gadolinium
MRI
MRI,abnormal
MRI,contrast enhanced
MRI,ring sign
MRI,serial
MRI,spinal cord
MRI,spine
myelitis
review article
spinal cord
spine,infection of
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