Unilateral condylar hyperplasia - A genetic link? Case reports

Area of Science:

• Medical Genetics
• Craniofacial Biology
• Orthodontics

Background:

• Unilateral condylar hyperplasia (UCH) is an uncommon craniofacial anomaly characterized by asymmetric overdevelopment of the mandibular condyle.
• The etiology of UCH remains largely unknown, contributing to challenges in diagnosis and management.
• UCH can lead to significant functional and aesthetic issues, including facial asymmetry, malocclusion, and temporomandibular joint dysfunction.

Observation:

• This study presents two unrelated Indian families with instances of unilateral condylar hyperplasia.
• Affected individuals within these families exhibited similar craniofacial abnormalities.
• In both families, the condition was observed to affect at least one parent, indicating a potential hereditary pattern.

Findings:

• The familial occurrence of unilateral condylar hyperplasia in these two Indian pedigrees strongly suggests a genetic component in its etiology.
• This observation challenges the previously held notion of unknown etiology for UCH.
• The findings point towards an inherited predisposition for mandibular condylar overgrowth.

Implications:

• These findings may pave the way for genetic research into the underlying causes of unilateral condylar hyperplasia.
• Understanding the genetic basis of UCH could lead to improved diagnostic tools and targeted therapeutic strategies.
• Further research into familial cases can help elucidate specific genes or inheritance patterns involved in craniofacial development and hyperplasia.