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Related Experiment Videos

Limited dermal ossification: a case report.

R A Bartosh1, W T Johnson

  • 1Orthopaedic Department, Naval Hospital Portsmouth, Virginia.

Orthopaedic Review
|February 1, 1988
PubMed
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A rare case of dermal ossification occurred in a 10-year-old girl, forming bone identical to normal bone. This condition caused joint bridging and immobility but spared vital organs and cognitive function.

Area of Science:

  • Dermatology
  • Orthopedics
  • Pediatrics
  • Medical Genetics

Background:

  • Ossification of the dermis is a rare condition characterized by the formation of ectopic bone within the skin.
  • While often associated with underlying metabolic disorders or specific syndromes, idiopathic cases can occur.

Observation:

  • A 10-year-old female presented with limited-distribution ossification of the dermis.
  • The ectopic bone formation bridged multiple joints in her upper and lower extremities, leading to nonambulatory status.
  • The patient exhibited no metabolic derangements in calcium or phosphate levels.

Findings:

  • Analysis confirmed the ectopic bone was histologically identical to normal membranous bone.
  • Despite extensive ossification and joint involvement, the patient had normal respiratory and cardiac function.

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  • Cognitive assessment revealed normal mental status and intelligence quotient (IQ).

    • Implications:

    • This case highlights a unique presentation of idiopathic dermal ossification in a pediatric patient.
    • Understanding the pathogenesis of such ectopic bone formation is crucial for potential therapeutic strategies.
    • Further research may elucidate the genetic or molecular mechanisms underlying this specific type of ossification.