Case contributed by Dr Ali Abougazia


Knee pain.

Patient Data

Age: 20 years
Gender: Male

Right tibia proximal epiphyseal medial condyle subchondral lytic lesion is seen having narrow zone of transition.

The lesion is subchondral, lytic, having geographic appearance, narrow transitional zone and surrounding sclerosis. The lesion measures 2.2 X 1.5 X 1.4 cm in orthogonal dimensions. 

The lesion elicits low T1 and high T2 / PD FS / STIR signals with a thin sclerotic rim and surrounding marrow edema.

Case Discussion

The patient's age and the lesion's radiological data are suggestive of chondroblastoma.

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Case information

rID: 25725
Published: 5th Nov 2013
Last edited: 3rd Dec 2019
Inclusion in quiz mode: Included

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