Presentation
Pain at the left tibial tuberosity of approximately 1.5 years duration has been getting worse. On physical exam, there is a notable lump over the left tibial tuberosity that is tender to palpation and warm to the touch. Pain increases with contraction of the quadriceps.
Patient Data
There is fragmentation of the left tibial tuberosity.
There is a well-defined, non-expansile lucent lesion with sclerotic margins noted along the endosteal surface of the proximal anterior tibia, which demonstrates a ground-glass matrix and no evidence of cortical disruption or periosteal reaction.
Case Discussion
A lateral view of the right knee was obtained as a comparison with the left, which demonstrated a fragmented tibial apophysis which is not diagnostic for Osgood Schlatter disease. The non-ossifying fibroma on the right side was an incidental finding. In this case, the fragmented apophysis is in keeping with the clinical symptoms of Osgood Schlatter disease, especially because the same finding is not observed on the contralateral side.
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