Document Detail


Increased T2 signal in the middle cerebellar peduncles on MRI is not specific for fragile X premutation syndrome.
MedLine Citation:
PMID:  15639410     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The fragile X premutation tremor/ataxia syndrome (FXTAS) is a recently described adult-onset neurodegenerative disorder, in which ataxia, tremor, cognitive decline, parkinsonism, neuropathy and autonomic dysfunction occur in various combinations. It is reported to display a characteristic MRI appearance, with increased T2 signal in the middle cerebellar peduncles and around the dentate nuclei. Diagnostic criteria have been proposed on the basis of these clinical and radiological features, presupposing that a CGG expansion has been demonstrated. We present three cases in which MRI and clinical findings suggested the possibility of FXTAS, although only one was confirmed on genetic testing. The phenotypic overlap with multiple system atrophy of cerebellar type (MSA-C) and the importance of genetic confirmation are emphasised.
Authors:
Elsdon Storey; Phiroz Billimoria
Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia     Volume:  12     ISSN:  0967-5868     ISO Abbreviation:  J Clin Neurosci     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2005-01-10     Completed Date:  2006-05-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9433352     Medline TA:  J Clin Neurosci     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  42-3     Citation Subset:  IM    
Affiliation:
Department of Medicine (Neuroscience), Monash University (Alfred Hospital Campus), Melbourne, Vic., Australia. elsdon.storey@med.monash.edu.au
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MeSH Terms
Descriptor/Qualifier:
Adult
Cerebellum / pathology*
Female
Fragile X Syndrome / genetics,  pathology*
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Multiple System Atrophy / etiology,  pathology
Tremor / etiology

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