We report a 14-month-old male with craniometaphyseal dysplasia (CMD). The patient presented with a history of diminishing vision and hearing loss. Cranial computed tomography scan showed diffuse calvarial and skull base hyperostosis with excessive bone narrowing the internal auditory canals and skull base foramina. A subsequent skeletal survey revealed other skeletal abnormalities, which led to the diagnosis of CMD. This was later confirmed by ANKH mutation. CMD is a rare genetic disorder that belongs to the group of craniotubular bone dysplasias. It is important to recognize this condition from other causes of craniotubular bone dysplasias to institute early treatment and explain prognosis.
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http://dx.doi.org/10.1016/j.radcr.2016.04.006 | DOI Listing |
Plast Reconstr Surg Glob Open
December 2024
From the Department of Oral & Maxillofacial Surgery, São Leopoldo Mandic, São Paulo, Brazil.
Craniometaphyseal dysplasia is a rare congenital sclerosing skeletal dysplasia that presents with facial dimorphism and is clinically described by prominent supraorbital bridges, severe retrognathia, and respiratory problems. Fronto-orbital cranioplasty is necessary to achieve satisfactory aesthetic outcomes. The supraorbital arches were exposed to the nasal bone through coronal access, with the help of a saw and a wear drill, and osteotomy of the frontal and orbital regions with hyperostosis was performed.
View Article and Find Full Text PDFJ Dev Biol
September 2024
Department of Biology, Western University, London, ON N6A 5B7, Canada.
Craniometaphyseal Dysplasia (CMD) is a rare skeletal disorder that can result from mutations in the gene. This gene encodes progressive anksylosis (ANK), which is responsible for transporting inorganic pyrophosphate (PPi) and ATP from the intracellular to the extracellular environment, where PPi inhibits bone mineralization. When ANK is dysfunctional, as in patients with CMD, the passage of PPi to the extracellular environment is reduced, leading to excess mineralization, particularly in bones of the skull.
View Article and Find Full Text PDFJBMR Plus
September 2024
Center for Regenerative Medicine and Skeletal Development, Department of Reconstructive Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, CT 06030, United States.
Craniometaphyseal dysplasia (CMD) is a rare genetic bone disorder, characterized by progressive thickening of craniofacial bones and flared metaphyses of long bones. Craniofacial hyperostosis leads to the obstruction of neural foramina and neurological symptoms such as facial palsy, blindness, deafness, or severe headache. Mutations in (mouse ortholog ), a transporter of small molecules such as citrate and ATP, are responsible for autosomal dominant CMD.
View Article and Find Full Text PDFLancet
May 2024
Unité d'Immunologie, d'Hématologie et de Rhumatologie Pédiatriques, Assistance Publique-Hôpitaux de Paris, Hôpital Necker-Enfants Malades, Université Paris Cité, Paris, France; Centre de Référence des Déficits Immunitaires Héréditaires (CEREDIH), Assistance Publique-Hôpitaux de Paris, Hôpital Necker-Enfants Malades, Université Paris Cité, Paris, France; Université Paris Cité, INSERM UMR1163, Institut Imagine, Paris, France. Electronic address:
Res Sq
February 2024
Department of Endodontology, School of Dental Medicine, University of Connecticut Health, Farmington, CT, United States.
Craniometaphyseal dysplasia (CMD), a rare craniotubular disorder, occurs in an autosomal dominant (AD) or autosomal recessive (AR) form. CMD is characterized by hyperostosis of craniofacial bones and flaring metaphyses of long bones. Many patients with CMD suffer from neurological symptoms.
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