ABSTRACT

Aims:

Periosteal chondroma is a rare and benign cartilage tumor seen mostly in long bones and in patients under 30 years of age. In this case report, it is aimed to present a 16-year-old female patient with a periosteal chondroma in the distal femur.

Case Report:

A 16-year-old female patient was admitted to the hospital with the history of pain in her distal part of right thigh. A superficial cortical erosion with well-defined borders without any relation to the intramedullary area was seen in magnetic resonance imaging. The lesion was regarded as periosteal chondroma and marginal excision was performed.

Conclusion:

This case report shows the importance of the differential diagnosis in cortical lesions. Periosteal chondroma may be considered when a patient has a history of long term pain in adolescent age group.