We report a case of mild frontonasal dysplasia, a complex and rare malformation affecting the central portion of the face, especially the eyes, nose, and forehead, which was diagnosed at 20 weeks of gestation. The diagnosis was made by two- and four-dimensional ultrasound and confirmed at autopsy after pregnancy termination. A review of the literature is presented.
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http://dx.doi.org/10.1002/jcu.22861 | DOI Listing |
Cleft Palate Craniofac J
January 2025
Division of Orthodontics, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil.
This case report presents the multidisciplinary treatment of a male patient with a complex form of frontonasal dysplasia who presented with a 0 to 14 facial cleft, mild hypertelorism, absence of the nasal medial process of the nose, and frontonasal encephalocele. Cranial and plastic surgeries were performed to correct hypertelorism and improve the esthetic appearance of the frontonasal region. In the permanent dentition, the patient presented a Class II, division 1 malocclusion with severe maxillary constriction and bilateral posterior crossbite.
View Article and Find Full Text PDFMol Cytogenet
October 2024
Laboratorio de Genética y Genómica, Sociedad de Lucha contra el Cáncer (SOLCA), Quito, Ecuador.
We present the case of a 7-year-old Ecuadorian mestizo girl with multiple orofacial malformations. The patient is the product of a first-degree relationship (father-daughter). A cytogenetic study revealed a normal karyotype.
View Article and Find Full Text PDFHeliyon
August 2024
Bangladesh Council of Scientific and Industrial Research, Dhaka, Bangladesh.
Background: Frontonasal dysplasia type-2(FND2), a rare phenotypically variable and heterogeneous developmental anomaly resulting from mutation of the ALX4 gene, is primarily characterized by malformation of the skull and facial skeleton. This study was designed to showcase a clinical, imaging, and genetic analysis of FND2 in a consanguineous family of Bangladeshi origin.
Methodology: Clinical imaging and whole genome sequencing of mother, father and patient was done by using Nextera DNA flex library preparation kit (Illumina, USA) using Novaseq 6000 next generation sequencer to find out ALX4 mutation which causes FND2 in patient.
J Dev Biol
July 2024
Department of Diagnostic & Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX 77054, USA.
Frontonasal malformations are caused by a failure in the growth of the frontonasal prominence during development. Although genetic studies have identified genes that are crucial for frontonasal development, it remains largely unknown how these genes are regulated during this process. Here, we show that microRNAs, which are short non-coding RNAs capable of targeting their target mRNAs for degradation or silencing their expression, play a crucial role in the regulation of genes related to frontonasal development in mice.
View Article and Find Full Text PDFBMC Pregnancy Childbirth
June 2024
Department of Ultrasound, Beijing Obstetrics and Gynecology Hospital, Capital Medical University. Beijing Maternal and Child Health Care Hospital, Beijing, China.
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