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Tibial encondroma

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Findings

hyper intense PD fs anf hipo T1 intraosseuous mass, polilobulatated, with some signal void inside, possibly calcifications.


Diagnosis

Tibial encondroma


Discussion

although the posterior cortex of the tibial is disrupted, it doesn't mean malignancy. Cortext was thinned and scalloped by the encondroma, so the fragile bone collaped at minor trauma


DDx

encondroma

osteonecrosis


Key points

Disrupted cortex does not always mean malignancy



Tibial encondroma  MRI Lower limb Axial

MRI Lower limb Axial

Tibial encondroma  MRI Lower limb Sagittal

MRI Lower limb Sagittal

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