Presentation
Knee pain.
Patient Data
Age: 40 years
Gender: Male
From the case:
Subchondral insufficiency fracture of the knee
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Info
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There is subchondral linear T1/PD/PD fatsat hypointensity parallel to the overlying cortex. Significant surrounding marrow edema is seen.
Case Discussion
Findings are suggestive of subchondral insufficiency of the medial femoral condyle, previously known as spontaneous osteonecrosis of the knee (SONK).