Presentation
Knee pain.
Patient Data
Age: 20 years
Gender: Male
From the case:
Chondroblastoma
Right tibia proximal epiphyseal medial condyle subchondral lytic lesion is seen having narrow zone of transition.
From the case:
Chondroblastoma
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Axial bone window
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.
From the case:
Chondroblastoma
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Axial T2
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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