Imaging Sci Dent.
2023 Sep;53(3):257-263. 10.5624/isd.20230069.
Head and neck manifestations of fibrodysplasia ossificans progressiva: Clinical and imaging findings in 2 cases
- Affiliations
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- 1Department of Oral and Maxillofacial Radiology, Seoul National University Dental Hospital, Seoul, Korea
- 2Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University, Seoul, Korea
- KMID: 2546699
- DOI: http://doi.org/10.5624/isd.20230069
Abstract
- Fibrodysplasia ossificans progressiva is a rare hereditary disorder characterized by progressive heterotopic ossifica-tion in muscle and connective tissue, with few reported cases affecting the head and neck region. Although plain radiographic findings and computed tomography features have been well documented, limited reports exist on magnetic resonance findings. This report presents 2 cases of fibrodysplasia ossificans progressiva, one with limited mouth opening due to heterotopic ossification of the lateral pterygoid muscle and the other with restricted neck movement due to heterotopic ossification of the platysma muscle. Clinical findings of restricted mouth opening or limited neck movement, along with radiological findings of associated heterotopic ossification, should prompt consideration of fibrodysplasia ossificans progressiva in the differential diagnosis. Dentists should be particularly vigilant with patients diagnosed with fibrodysplasia ossificans progressiva to avoid exposure to diagnostic biopsy and invasive dental procedures.
