Chondroblastoma

Case contributed by Dr Ali Abougazia

Presentation

Knee pain.

Patient Data

Age: 22
Gender: Male
Modality: X-ray

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

Modality: 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. 
Modality: 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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