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Clinical and radiological findings in a severe case of cleidocranial dysplasia.

ABSTRACT: Cleidocranial dysplasia (CCD) is a rare congenital autosomal dominant condition, causing hypoplasia of the clavicle, abnormal formation of teeth, skeletal and craniofacial bones. CCD is caused by the mutation of RUNX2/CBFA1 present in the short arm of chromosome 6 at position 21.1, a transcription factor essential for the formation of teeth, cartilage and bone. Patients with CCD show the classical features of excessive mobility of the shoulder bone, lack of resorption of the deciduous teeth, failure to erupt permanent teeth, multiple impacted and supernumerary teeth, and open fontanelle and sutures of the skull. In this article we report a case of CCD in a 16-year-old male patient, with an aim to highlight the clinical, radiological and recommended treatment guidelines.

SUBMITTER: Lotlikar PP

PROVIDER: S-EPMC6254376 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Clinical and radiological findings in a severe case of cleidocranial dysplasia.

Lotlikar Priti P PP Creanga Adriana G AG Singer Steven R SR

BMJ case reports 20181112

Cleidocranial dysplasia (CCD) is a rare congenital autosomal dominant condition, causing hypoplasia of the clavicle, abnormal formation of teeth, skeletal and craniofacial bones. CCD is caused by the mutation of RUNX2/CBFA1 present in the short arm of chromosome 6 at position 21.1, a transcription factor essential for the formation of teeth, cartilage and bone. Patients with CCD show the classical features of excessive mobility of the shoulder bone, lack of resorption of the deciduous teeth, fai ...[more]

PMID: 30420564

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Clinical-radiological approach for the diagnosis of cleidocranial dysplasia in adults: A familial cases series.

Project description:Cleidocranial dysplasia is a rare disease with an autosomal-dominant inheritance that mainly affects the bones of the axial skeleton. In this report, we discuss the clinical and radiological signs of a case series comprising three sisters and the son of one of the sisters, all with suspected bone dysplasia.

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Cleidocranial dysplasia: clinical and molecular genetics.

Project description:Cleidocranial dysplasia (CCD) (MIM 119600) is an autosomal dominant skeletal dysplasia characterised by abnormal clavicles, patent sutures and fontanelles, supernumerary teeth, short stature, and a variety of other skeletal changes. The disease gene has been mapped to chromosome 6p21 within a region containing CBFA1, a member of the runt family of transcription factors. Mutations in the CBFA1 gene that presumably lead to synthesis of an inactive gene product were identified in patients with CCD. The function of CBFA1 during skeletal development was further elucidated by the generation of mutated mice in which the Cbfa1 gene locus was targeted. Loss of one Cbfa1 allele (+/-) leads to a phenotype very similar to human CCD, featuring hypoplasia of the clavicles and patent fontanelles. Loss of both alleles (-/-) leads to a complete absence of bone owing to a lack of osteoblast differentiation. These studies show that haploinsufficiency of CBFA1 causes the CCD phenotype. CBFA1 controls differentiation of precursor cells into osteoblasts and is thus essential for membranous as well as endochondral bone formation.

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Cleidocranial dysplasia: case report of three siblings.

Project description:BackgroundA family case report of cleidocranial dysplasia (CCD) with varied manifestations from father to three siblings is presented. CCD ( MIM # 119600) is a rare autosomal dominant skeletal dysplasia caused by CBAF1 gene ( OMIM 600211) with a wide range of variability. In all the cases generalized dysplasia in bone, prolonged retention of primary teeth and delayed eruption of permanent teeth were evident. Interestingly, there were no supernumerary teeth present. There was mandibular prognathism which was intercepted by occipital chin cup therapy.Aims and objectiveTo present the clinical manifestations, diagnostic imaging and treatment modalities along with dermatoglyphics in CCD patients.ConclusionCleidocranial dysplasia is an uncommon disorder however its clinical and radiological features are characteristic. In addition the CCD patients may be distinguished by specific dermatoglyphic markers. It carries with it several implications in terms of complications like skeletal malocclusion, dental caries, etc. Medical treatment is mainly directed at orthopedic and dental correction. A team approach to the management of dental abnormalities on a long-term basis with the overall goal to provide an esthetic facial appearance and functioning occlusion by late adolescence or early adulthood should be focused.

| S-EPMC4086567 | biostudies-literature

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Cleidocranial dysplasia.

Project description:We present a 4-year-old girl with persistent anterior fontanelle and narrow sloping shoulders. The X-ray imaging revealed widely open anterior fontanelle, supernumerary teeth, and absence of clavicles. Therefore, the diagnosis was cleidocranial dysplasia, which is a rare autosomal dominant skeletal disease, caused by the mutation in the gene on 6p21 encoding transcription factor CBFA1 (runt-related transcription factor 2-RUNX2). The girl remains under close surveilance, her anterior fontanelle closed spontaneously at the age of 9 years.

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Cleidocranial dysplasia syndrome with epilepsy: a case report.

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Cleidocranial dysplasia with growth hormone deficiency: a case report.

Project description:BACKGROUND:Cleidocranial dysplasia (CCD) is a rare skeletal disorder with autosomal dominant inheritance that is characterized by hypoplastic clavicles, delayed closure of the cranial sutures, dental abnormalities, and short stature, among other features. The responsible gene for CCD is RUNX2 located on the short arm of chromosome 6p21. In general, there are intrafamilial variations in height among CCD patients. Few studies have reported data on recombinant human growth hormone (rhGH) treatment for patients with CCD; thus, it remains to be elucidated whether rhGH treatment can improve short stature. Here, we report a case of a 6-year-old girl with CCD who has growth hormone deficiency (GHD) and a novel mutation of RUNX2. CASE PRESENTATION:At 5?years of age, this patient was diagnosed with GHD and rhGH treatment was initiated. Thereafter, she was diagnosed with CCD due to the presence of hypoplastic clavicles and an open fontanelle, which was also observed in her mother and brother. She responded well to rhGH treatment; her height improved from -?3.2 SD to -?2.4 SD after 13?months. CONCLUSION:A detailed patient history and physical examination are necessary for the early diagnosis of CCD. Similarly, to ascertain the effect of rhGH treatment, careful evaluation of the patient's final height post-therapy is needed.

| S-EPMC6966812 | biostudies-literature

An evaluation of clinical, radiological and three-dimensional dental tomography findings in ectodermal dysplasia cases.

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Radiological and Clinical Findings of Multiple Cerebellar Liponeurocytoma: A Case Report.

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Craniofacial features of cleidocranial dysplasia.

Project description:Cleidocranial dysplasia (CCD) is an autosomal-dominant malformation syndrome affecting bones and teeth. The most common skeletal and dental abnormalities in affected individuals are hypoplastic/aplastic clavicles, open fontanelles, short stature, retention of primary teeth, delayed eruption of permanent teeth, supernumerary teeth, and multiple impacted teeth. Treatment of CCD requires a multidisciplinary approach that may include dental corrections, orthognathic surgery and cranioplasty along with management of any complications of CCD. Early diagnosis of this condition enables application of the treatment strategy that provides the best quality of life to such patients. Notably, Runx2 gene mutations have been identified in CCD patients. Therefore, further elucidation of the molecular mechanism of supernumerary teeth formation related to Runx2 mutations may improve understanding of dental development in CCD. The insights into CCD pathogenesis may assist in the development of new treatments for CCD.

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