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*On MRI, enchondroma is characterized by a well circumscribed, lobulated mass replacing the marrow.<ref name=po>Enchondroma. Radiopedia. http://radiopaedia.org/articles/enchondroma Accessed on January 4, 2016.</ref>  
*On MRI, enchondroma is characterized by a well circumscribed, lobulated mass replacing the marrow.<ref name=po>Enchondroma. Radiopedia. http://radiopaedia.org/articles/enchondroma Accessed on January 4, 2016.</ref>  
*On MRI, periosteal chondroma is characterized by a lobulated [[soft tissue]] lesion that is abutting the cortex. Periosteal chondroma may demonstrate evidence of pressure erosion on neighboring bone, with no evidence of medullary bone or soft tissue [[edema]].<ref name=ll>Juxtacortical chondroma. Radiopedia. http://radiopaedia.org/articles/juxta-cortical-chondroma Accessed on January 4, 2016.</ref>
*On MRI, periosteal chondroma is characterized by a lobulated [[soft tissue]] lesion that is abutting the cortex. Periosteal chondroma may demonstrate evidence of pressure erosion on neighboring bone, with no evidence of medullary bone or soft tissue [[edema]].<ref name=ll>Juxtacortical chondroma. Radiopedia. http://radiopaedia.org/articles/juxta-cortical-chondroma Accessed on January 4, 2016.</ref>
*Following are the [[MRI]] signal characteristics:<ref name=po>Enchondroma. Radiopedia. http://radiopaedia.org/articles/enchondroma Accessed on January 4, 2016.</ref><ref name=ll>Juxtacortical chondroma. Radiopedia. http://radiopaedia.org/articles/juxta-cortical-chondroma Accessed on January 4, 2016.</ref>
*On MRI, enchondroma and periosteal chondroma ma be characterized by:<ref name=po>Enchondroma. Radiopedia. http://radiopaedia.org/articles/enchondroma Accessed on January 4, 2016.</ref><ref name=ll>Juxtacortical chondroma. Radiopedia. http://radiopaedia.org/articles/juxta-cortical-chondroma Accessed on January 4, 2016.</ref>


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Revision as of 16:40, 7 January 2016

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Soujanya Thummathati, MBBS [2]

Overview

MRI of the affected bone is helpful in the diagnosis of chondroma. On MRI, enchondroma is characterized by well circumscribed, lobulated mass replacing the bone marrow.[1] On MRI, periosteal chondroma is characterized by lobulated soft tissue lesion that is abutting the cortex. Periosteal chondroma may demonstrate evidence of pressure erosion on neighboring bone, with no evidence of medullary bone or soft tissue edema.[2]

MRI

  • MRI of the affected bone is helpful in the diagnosis of chondroma.
  • On MRI, enchondroma is characterized by a well circumscribed, lobulated mass replacing the marrow.[1]
  • On MRI, periosteal chondroma is characterized by a lobulated soft tissue lesion that is abutting the cortex. Periosteal chondroma may demonstrate evidence of pressure erosion on neighboring bone, with no evidence of medullary bone or soft tissue edema.[2]
  • On MRI, enchondroma and periosteal chondroma ma be characterized by:[1][2]
MRI component Enchondroma Periosteal chondroma

T1

  • Intermediate to low signal
  • Iso to low signal relative to muscle

T2

  • Typically of background intense high signal
  • Focal low signal areas representing calcification
  • No bone marrow or soft tissue oedema
  • Generally high signal
  • Focal low signal areas representing calcification

T1 with contrast

  • Enhancement is variable
  • May be seen both peripherally or of translesional septae
  • Heterogenous
  • Tends to show peripheral predominant contrast enhancement
  • MRI T1 showing an enchondroma in the femur.[3]

    MRI T1 showing an enchondroma in the femur.[3]

  • MRI T2 showing juxtacortical chondroma of Right middle finger distal phalanx.[4]

    MRI T2 showing juxtacortical chondroma of Right middle finger distal phalanx.[4]

References

  1. ↑ 1.0 1.1 1.2 Enchondroma. Radiopedia. http://radiopaedia.org/articles/enchondroma Accessed on January 4, 2016.
  2. ↑ 2.0 2.1 2.2 Juxtacortical chondroma. Radiopedia. http://radiopaedia.org/articles/juxta-cortical-chondroma Accessed on January 4, 2016.
  3. ↑ Enchondroma. Wikipedia. https://en.wikipedia.org/wiki/Enchondroma#/media/File:Enchondrom_Femur_T1_sag.png Accessed on January 5, 2016
  4. ↑ Juxtacortical chondroma. Radiopedia. http://radiopaedia.org/cases/juxta-cortical-chondroma, Accessed on January 5, 2016


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