Document Detail

Fluid collection within the synovial sheath of the tendon of the flexor hallus longus muscle in the tarsal joint of rats: an anatomic variant detectable with magnetic resonance imaging.
MedLine Citation:
PMID:  16460589     Owner:  NLM     Status:  MEDLINE    
Magnetic resonance (MR) images of the right tarsal joint of 22 normal male Han:Wistar rats were acquired using a 4.7 T magnet. An intermediate-high signal area associated with the tendon of the flexor hallus longus muscle was noticed in three rats on T2-weighted images. These areas appeared as an intermediate-high signal on lightly T2-weighted images, but appeared as an iso-signal to muscle structure on proton density weighted images. Histology preparations showed that such areas were caused by a sizable fluid collection within the synovial sheath of the tendon of the flexor hallus longus muscle, with all other joint structures appearing normal. This anatomic variant could be potentially regarded as a lesion on T2-weighted MR images, such as inflamed tissue with oedema, especially when the spatial resolution and/or signal-to-noise ratio are not optimal.
Y-X J Wang; F R Westwood
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Laboratory animals     Volume:  40     ISSN:  0023-6772     ISO Abbreviation:  Lab. Anim.     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2006-02-07     Completed Date:  2006-03-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0112725     Medline TA:  Lab Anim     Country:  England    
Other Details:
Languages:  eng     Pagination:  58-62     Citation Subset:  IM    
AstraZeneca, Alderley Park, Macclesfield, Cheshire, UK.
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MeSH Terms
Hindlimb / anatomy & histology,  physiology
Magnetic Resonance Imaging / methods,  veterinary*
Muscle, Skeletal
Rats, Wistar
Synovial Fluid / physiology*
Synovial Membrane / anatomy & histology*,  physiology
Tarsal Joints / anatomy & histology*,  physiology
Tendons / anatomy & histology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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