Chondromyxoid fibroma

Case contributed by Frank Gaillard

Patient Data

Age: 70 years
Gender: Male

A focal lucent lesion of the proximal ulna is demonstrated with a narrow zone of transition.


Single CT image through the lesion confirms the presence of the lesion that is confined to the cortex of the bone. 


MRI demonstrates the lesion to have very high T2 signal and low T1 signal with no adjacent soft tissue component or bone marrow edema. 

Case Discussion

This patient went on to have a curettage confirming the diagnosis of a chondromyxoid fibroma


  1. Intramedullary contents from the left ulna showing chondromyxoid fibroma.

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