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Congenital hemifacial hyperplasia
S A Deshingkar1, S R Barpande, J D Bhavthankar
1Department of Oral Pathology and Microbiology, Government Dental College and Hospital, Aurangabad, Maharashtra, India.
Insights
Congenital hemifacial hyperplasia (CHH) causes significant facial asymmetry due to unilateral overdevelopment. This rare condition, evident from birth, presents complex etiological factors and requires careful diagnosis of facial and dental tissues.
Area of Science:
- Craniofacial biology
- Medical genetics
- Pediatric dentistry
Background:
- Congenital hemifacial hyperplasia (CHH) is a rare condition causing unilateral facial overgrowth.
- Facial asymmetry is typically present at birth and progresses with age, particularly during puberty.
- The exact etiology of CHH remains unclear, with proposed factors including genetic, environmental, and endocrine influences.
Observation:
- CHH is characterized by the disproportionate enlargement of both hard and soft tissues on one side of the face.
- Dental and jaw anomalies, including malocclusion and tooth development issues, are common findings.
- The affected side exhibits growth proportional to the unaffected side, maintaining asymmetry throughout life.
Findings:
- This case report details archetypal features of congenital hemifacial hyperplasia.
- The study aims to contribute to the existing clinical understanding of CHH.
- Diagnostic key findings include deformities across all facial tissues, notably teeth and jaw structures.
Implications:
- Accurate diagnosis of CHH relies on recognizing characteristic deformities in facial structures, including dental and jaw tissues.
- Further research into the heterogeneous etiology of CHH is warranted.
- Understanding CHH contributes to improved clinical management and potential therapeutic strategies for affected individuals.
Abstract:
Congenital hemifacial hyperplasia (CHH) is a rare congenital malformation characterized by marked unilateral overdevelopment of hard and soft tissues of the face. Asymmetry in CHH is usually evident at birth and accentuated with age, especially at puberty. The affected side grows at a rate proportional to the nonaffected side so that the disproportion is maintained thr oughout the life. Multisystem involvement has resulted in etiological heterogeneity including heredity, chromosomal abnormalities, atypical forms of twinning, altered intrauterine environment, and endocrine dysfunctions; however, no single theory explains the etiology adequately. Deformities of all tissues of face, including teeth and their related tissues in the jaw, are key findings for correct diagnosis of CHH. Here an attempt has been made to present a case of CHH with its archetypal features and to supplement existing clinical knowledge.
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