Presentation
Thigh lump.
Patient Data
Age: Adolescent.
From the case:
Osteochondroma - femur
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A focal outgrowth from the anterior aspect of the distal femur, continuous with the medullary cavity is consistent with an osteochondroma.
From the case:
Osteochondroma - femur
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Longitudinal ultrasound image of the osteochondroma demonstrates only a thin cartilage cap.
Case Discussion
Features are characteristic of an osteochondroma of the femur. A thin cartilage cap makes malignant degeneration extremely unlikely.