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Fibrodysplasia Ossificans

- Presentation:
    - shortened first toe is characteristic in fibrodysplasia ossificans progressiva;
    - recognition of this consistent foot deformity can help in the early diagnosis;
    - torticollis is common;

- Radiographs:
    - see ossification of soft tissue:
    - ossification, which occurs in the fascia and not in the muscle fibers, rarely occurs before 6 months of age.
   - may see a developmental fusion of the cervical vertebra that may be confused with Still's Disease

- Treatment:
    - this deformity need not be treated surgically.

Fibrodysplasia ossificans progressiva. A survey of forty-two cases.

Bone morphogenetic protein-4 regulation in fibrodysplasia ossificans progressiva.