Presentation
Left hip pain.
Patient Data
Age: 14 years
Gender: Male
From the case:
Crescent sign of femoral head avascular necrosis
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Subchondral lucency seen at proximal left femoral head.
Case Discussion
Features are consistent with the crescent sign seen on conventional radiographs and refers to a subchondral lucency seen most frequencly anterolateral aspect of the proximal femoral head indicated avascular necrosis of femoral head.
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