- Etiology: unknown
- Imaging: asymmetrical cortical thickening and marrow fibrosis, most commonly affects flat bones in early infancy – mandible (80%) / clavicle / ribs / scapula / skull / ilium, asymmetrical involvement of ulnar diaphysis most common pattern of tubular bone involvement
- Clinical: present before 9 weeks old, unusual after 6 months old, usually spontaneously resolves in 6-9 months, can have irritability / acute pain / soft tissue swelling / elevated alkaline phosphatase
Radiology Cases of Infantile Cortical Hyperostosis
