Chondroma MRI

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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, abutting the cortex and 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 well circumscribed, lobulated mass replacing the marrow.[1]
  • On MRI, periosteal chondroma is characterized by lobulated soft tissue lesion, abutting the cortex and may demonstrate evidence of pressure erosion on neighboring bone, with no evidence of medullary bone or soft tissue edema.[2]
  • Following are the MRI signal characteristics:[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

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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