Possible autosomal recessive inheritance in an infant with acrofacial dysostosis similar to Nager syndrome. 2013

Banu Guzel Nur, and Francois P Bernier, and Osman Oztekin, and Fırat Kardelen, and Salih Kalay, and Jillian S Parboosingh, and Ercan Mihci
Department of Pediatric Genetics, Akdeniz University School of Medicine, Antalya, Turkey.

The acrofacial dysostosis syndromes, which are characterized by malformations of the craniofacial region and limbs, are a clinically heterogeneous group of disorders. Based primarily on the of the pattern of limb defects two major groups have emerged: Nager syndrome with predominantly preaxial malformations plus mandibulofacial dysostosis (severe micrognathia and malar hypoplasia) and Miller syndrome with postaxial malformations plus mandibulofacial dysostosis. Among these syndromes, Nager syndrome is a rare condition but the most common form of acrofacial dysostosis. Most cases are sporadic, while autosomal dominant and autosomal recessive inheritance patterns have been reported. Recently, heterozygous mutations in the SF3B4 gene on chromosome 1q12-q21 were found to be responsible for a subset of sporadic and autosomal dominant cases. We present a female infant born to consanguineous parents with craniofacial features resembling Nager syndrome and a unilateral preaxial limb malformation. Mutation analysis of coding exons of SF3B4 did not identify any mutations. This couple also had a deceased child who had similar clinical features. We conclude that, the presence of consanguinity and absence of mutation in SF3B4, provides evidence in support of a recessive form of Nager syndrome.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008342 Mandibulofacial Dysostosis A hereditary disorder occurring in two forms: the complete form (Franceschetti's syndrome) is characterized by a slant of the palpebral fissures, COLOBOMA of the lower lid, MICROGNATHIA and hypoplasia of the ZYGOMATIC ARCHES, and CONGENITAL MICROTIA. It is transmitted as an autosomal trait. The incomplete form (Treacher Collins syndrome) is characterized by the same anomalies in less pronounced degree. It occurs sporadically, but an autosomal dominant mode of transmission is suspected. (Dorland, 27th ed) MFD1 Mandibulofacial Dysostosis,Treacher Collins Syndrome,Franceschetti-Zwahlen-Klein Syndrome,Mandibulofacial Dysostosis (MFD1),Treacher Collins-Franceschetti Syndrome,Dysostoses, MFD1 Mandibulofacial,Dysostoses, Mandibulofacial,Dysostoses, Mandibulofacial (MFD1),Dysostosis, MFD1 Mandibulofacial,Dysostosis, Mandibulofacial,Dysostosis, Mandibulofacial (MFD1),Franceschetti Zwahlen Klein Syndrome,Franceschetti-Zwahlen-Klein Syndromes,MFD1 Mandibulofacial Dysostoses,Mandibulofacial Dysostoses,Mandibulofacial Dysostoses (MFD1),Mandibulofacial Dysostoses, MFD1,Mandibulofacial Dysostosis, MFD1,Syndrome, Franceschetti-Zwahlen-Klein,Syndrome, Treacher Collins,Syndrome, Treacher Collins-Franceschetti,Syndromes, Franceschetti-Zwahlen-Klein,Syndromes, Treacher Collins-Franceschetti,Treacher Collins Franceschetti Syndrome,Treacher Collins-Franceschetti Syndromes
D010375 Pedigree The record of descent or ancestry, particularly of a particular condition or trait, indicating individual family members, their relationships, and their status with respect to the trait or condition. Family Tree,Genealogical Tree,Genealogic Tree,Genetic Identity,Identity, Genetic,Family Trees,Genealogic Trees,Genealogical Trees,Genetic Identities,Identities, Genetic,Tree, Family,Tree, Genealogic,Tree, Genealogical,Trees, Family,Trees, Genealogic,Trees, Genealogical
D010641 Phenotype The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment. Phenotypes
D003241 Consanguinity The magnitude of INBREEDING in humans. Inbreeding, Human,Consanguineous Marriage,Consanguinous Mating,Consanguineous Marriages,Consanguinities,Consanguinous Matings,Human Inbreeding,Human Inbreedings,Inbreedings, Human,Marriage, Consanguineous,Marriages, Consanguineous,Mating, Consanguinous,Matings, Consanguinous
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D005260 Female Females
D005808 Genes, Recessive Genes that influence the PHENOTYPE only in the homozygous state. Conditions, Recessive Genetic,Genetic Conditions, Recessive,Recessive Genetic Conditions,Condition, Recessive Genetic,Gene, Recessive,Genetic Condition, Recessive,Recessive Gene,Recessive Genes,Recessive Genetic Condition
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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