Chondroblastoma

Case contributed by Dr Ali Abougazia

Presentation

Knee pain.

Patient Data

Age: 22
Gender: Male
X-ray

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

CT
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. 
MRI

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 those of chondroblastoma.
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Case information

rID: 25725
Case created: 5th Nov 2013
Last edited: 5th Oct 2015
Inclusion in quiz mode: Included

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