"Bochdalek" skull (syngnathia): CT examination

Area of Science:

• Anatomy
• Genetics
• Pathology

Background:

• Syngnathia, or bony fusion of the jaws, is an uncommon congenital anomaly.
• It can occur independently or be associated with genetic syndromes like Treacher-Collins and van der Woude syndrome.
• Previous reports have described syngnathia with other oral anomalies such as cleft palate and aglossia.

Observation:

• This study re-examined a 19th-century depiction of a girl's skull with jaw anomaly using computed tomography (CT).
• The case presented involves syngnathia with bilateral vision, where the mandible, maxilla, zygomatic, and palatal bones were fused.
• The CT findings provided detailed insights into the complex bony fusion.

Findings:

• CT analysis suggests that mechanical trauma may initiate a cascade of bone disturbances in the facial skeleton, leading to syngnathia.
• The extensive fusion observed indicates a significant disruption of normal craniofacial development.
• The findings support the hypothesis that external forces can play a crucial role in the etiology of syngnathia.

Implications:

• Understanding the potential role of mechanical trauma in syngnathia development could inform future diagnostic and treatment strategies.
• This case highlights the importance of integrating historical data with modern imaging techniques for studying rare congenital anomalies.
• Further research into the biomechanics of craniofacial development is warranted to elucidate the precise mechanisms underlying syngnathia.