Diagnostic Approach for Clavicular Growth in a 24-Year-Old Male

Age-Specific Diagnostic Considerations

At age 24, this patient falls within the peak incidence range (5-40 years) for primary bone sarcomas, specifically osteosarcoma and Ewing sarcoma, though the clavicle is an uncommon site for these tumors, according to the American College of Surgeons 1, 2

Persistent non-mechanical pain lasting more than a few weeks is highly concerning for malignancy, and night pain is particularly worrisome and should trigger urgent investigation, as recommended by the American Academy of Orthopaedic Surgeons 1, 2
Visible swelling indicates the tumor has breached the cortex and distended the periosteum, suggesting an aggressive process, according to the National Comprehensive Cancer Network 2

Conventional radiographs in two orthogonal planes are always the first imaging study and should never be skipped, and MRI of the entire clavicle with adjacent joints is mandatory when malignancy cannot be excluded with certainty on radiographs, as recommended by the American College of Radiology 1, 4
CT should be used selectively to better visualize calcifications, periosteal bone formation, or cortical destruction when diagnostic uncertainty exists, according to the European Society of Radiology 1, 4

All patients with radiologically suspected primary malignant bone tumors MUST be referred to a bone sarcoma reference center or specialized sarcoma network BEFORE any biopsy is performed, as recommended by the European Musculoskeletal Oncology Society 1, 4
If biopsy is indicated, it must be performed by the surgeon who will carry out definitive tumor resection or by a dedicated interventional radiologist on that team, according to the Society of Interventional Radiology 1, 4