Multicentric Osteoid Osteoma Presenting a Diagnostic Dilemma.
Radiology Case Reports
|June 16, 2016
Summary
An osteoid osteoma, a common benign bone tumor, presented atypically in a young man, mimicking stress fractures or osteomyelitis. Radiofrequency ablation successfully treated this challenging case.
Area of Science:
- Orthopedic Oncology
- Diagnostic Imaging
- Skeletal Radiology
Background:
- Osteoid osteoma is a common benign bone-forming tumor, typically presenting with nocturnal pain relieved by NSAIDs.
- Atypical presentations can mimic other bone pathologies, leading to diagnostic challenges.
Observation:
- A 22-year-old male presented with shin pain, initially suspected as stress fracture or osteomyelitis.
- Imaging revealed an unusual, large, multicentric osteoid osteoma in the tibia with a "string of beads" appearance.
- The lesion's intramedullary location and morphology were atypical for osteoid osteoma.
Findings:
- Multimodality imaging including X-ray, CT, MRI, and bone scans were employed for evaluation.
- Biopsy confirmed the diagnosis of osteoid osteoma with multiple nidi.
- The atypical features presented a significant diagnostic dilemma.
Implications:
- This case highlights the importance of considering osteoid osteoma in the differential diagnosis of bone lesions, even with atypical imaging features.
- Accurate diagnosis through comprehensive imaging and biopsy is crucial for appropriate management.
- Radiofrequency ablation offers a successful minimally invasive treatment option for osteoid osteoma.
