Document Detail


MRI of mycetoma of the foot: two cases demonstrating the dot-in-circle sign.
MedLine Citation:
PMID:  12605286     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Radiological and histological findings of two patients with fungal mycetoma of the foot are presented. MRI revealed multiple 2-5 mm lesions of high signal intensity interspersed within a low-intensity matrix. Within many of the lesions a minute low-intensity focus was identified. Ultrasound showed distinct hyperechoic foci within a hypoechoic mass. We speculate that the low-signal matrix represents fibrous tissue, the high-intensity lesions correspond to granulomata and the central low-signal focus to the characteristic organised fungal elements (grains) present in this condition. This "dot-in-circle sign" on MRI reflects the unique pathological features of mycetoma and is likely to be a highly specific sign for this lesion.
Authors:
I Sarris; A R Berendt; N Athanasous; S J Ostlere;
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2003-01-28
Journal Detail:
Title:  Skeletal radiology     Volume:  32     ISSN:  0364-2348     ISO Abbreviation:  Skeletal Radiol.     Publication Date:  2003 Mar 
Date Detail:
Created Date:  2003-02-26     Completed Date:  2003-05-30     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7701953     Medline TA:  Skeletal Radiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  179-83     Citation Subset:  IM    
Affiliation:
Medical School, University of Oxford, Oxford, UK.
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MeSH Terms
Descriptor/Qualifier:
Aged
Foot Diseases / diagnosis*,  pathology,  ultrasonography
Humans
Magnetic Resonance Imaging*
Male
Middle Aged
Mycetoma / diagnosis*,  pathology,  ultrasonography

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