Multifocal synchronous low-grade intramedullary and juxtacortical osteogenic sarcoma

Area of Science:

• Orthopedic Oncology
• Skeletal Radiology
• Bone Pathology

Background:

• Osteogenic sarcoma is a primary malignant bone tumor.
• Juxtacortical osteogenic sarcoma (JOS) is a rare subtype, typically low-grade and arising on the bone surface.
• Intramedullary osteogenic sarcoma occurs within the bone marrow cavity.

Observation:

• A 41-year-old woman presented with simultaneous, low-grade juxtacortical osteogenic sarcoma of the distal femur.
• The same patient also exhibited a low-grade intramedullary osteogenic sarcoma of the proximal tibia.
• Both tumors were ipsilateral, affecting the same limb.

Findings:

• The study documents the diagnostic imaging and histopathological findings for both tumor types.
• Treatment strategies employed for this unique presentation are discussed.
• Literature review provides context on synchronous osteosarcomas.

Implications:

• This case expands the understanding of rare synchronous bone tumor presentations.
• It underscores the importance of thorough evaluation for multifocal bone lesions.
• Optimal management strategies for synchronous low-grade osteosarcomas require careful consideration.