Presentation
Pain and a large area of swelling around the knee. Clinical symptoms for about 5 months.
Patient Data
Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.



There is a bone tumor characterized by an aggressive periosteal reaction and soft tissue component involving the distal femur.




MRI selected images showing the tumor involving the bone marrow, cortex, and having a soft tissue component.
Case Discussion
Osteogenic sarcoma is the sixth leading cancer in children under age 15 and it corresponds to approximately a fifth of all bone cancers. Complete radical surgical/en bloc resection is the treatment of choice for most cases.
This case was discussed in a multidisciplinary meeting where the final diagnosis was announced.