Cleidocranial dysplasia
1Department of Paediatrics, Bangladesh Institute of Research and Rehabilitation on Diabetes, Endocrine and Metabolic Disorders (BIRDEM), 122, Kazi Nazrul Islam Avenue, Shahabag, Dhaka-1000; Bangladesh. bzabeen@hotmail.com
Insights
Cleidocranial dysplasia (CCD) is a rare genetic disorder affecting bone development, particularly the skull and clavicles. This case report details a 13-year-old boy diagnosed with CCD, highlighting key clinical and radiological features.
Area of Science:
- Genetics
- Pediatrics
- Endocrinology
Background:
- Cleidocranial dysplasia (CCD) is a rare autosomal dominant disorder affecting intramembranous and endochondral ossification.
- Characterized by skeletal defects, particularly in the cranium and clavicles, with an incidence of 1 in a million.
- Over 500 cases reported globally.
Observation:
- A 13-year-old boy presented with growth delay, delayed tooth shedding, and eruption issues.
- Clinical examination revealed elongated facies, midfacial hypoplasia, hypertelorism, and a wide anterior fontanelle.
- Physical findings included short clavicles, allowing easy shoulder apposition.
Findings:
- Radiological assessment confirmed widened sutures and fontanelles, intact deciduous teeth, and impacted secondary teeth.
- Hypoplastic clavicles were noted, consistent with Cleidocranial dysplasia.
- Diagnosis was confirmed through clinical presentation and investigations.
Implications:
- This case underscores the importance of recognizing characteristic clinical and radiological signs of Cleidocranial dysplasia in pediatric patients.
- Early diagnosis and management are crucial for addressing growth and dental anomalies associated with CCD.
- Further research into the genetic basis and long-term outcomes of CCD is warranted.
Abstract:
Cleidocranial dysplasia (CCD) is a disorder that affects mostly those bones which derived from endochrondal and intramembranous ossification, such as the cranium and the clavicles. CCD is present at a frequency of one in one million individuals. Over 500 cases have been reported. A 13 years old boy reported in the Paediatric Endocrinology outpatient department, Bangladesh Institute of Research and Rehabilitation on Diabetes, Endocrine and Metabolic Disorders (BIRDEM) on 6th April 2006 with complaints of not growing according to his age, a wide gap over the head since birth and delayed shedding of primary teeth and also eruption of secondary teeth. The boy had elongated facies with midfacial hypoplasia, depressed nasal bridge with hypertelorism. His anterior fontanelle was open about 3/1.5 cm. He had short clavicle and his shoulders could be easily apposed. Radiological findings showed anterior fontanellle and sutures were open and widened, all decidual teeth were intact and all secondary teeth were impacted beneath the primary teeth and hypoplastic clavicle. He was diagnosed as a case of Cleidocranial Dysplasia on the basis of history, clinical examination and investigation.
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