Chondroma MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Farima Kahe M.D. [2] Soujanya Thummathati, MBBS [3]

MRI

Bone MRI may be helpful in the diagnosis of chondroma. Findings on MRI suggestive of chondroma include:
- Well circumscribed, lobulated mass replacing the marrow for enchondroma
- lobulated soft tissue lesion that is abutting the cortex and evidence of pressure erosion on neighboring bone, with no evidence of medullary bone or soft tissue edema for periostal chondroma for periostal chondroma


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