What is the most likely diagnosis?
- 32 year-old with hip pain after fall
AP and lateral view of right hip
- Heterotopic Ossification
- Avulsion of Ant. Sup. Iliac Spine
- Pelvic digit
- Fracture of Ischium
- Foreign Body
Additional Images - Coronal Reformatted CT of Pelvis
Additional Images
Coronal Reformatted CT of Pelvis
Answer:
3. Pelvic Digit
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Pelvic Digit
General Considerations
- Rare congenital anomaly
- Bone develops in soft tissue
- Can arise from any of the pelvic bones; also anterior abdominal wall
- Most commonly arises from ilium
- Unilateral
- Believed to arise in mesenchymal stage of bone growth within first 6 weeks of embryogenesis