Agnathia, holoprosencephaly and situs inversus complex is an extremely rare form of congenital malformation. Though a few cases have been reported from other parts of the world, to the best of our knowledge none has been reported from India so far. Maternal alcoholism is regarded as an important factor causing holoprosencephaly. Disruption of the Shh gene signaling pathway is also said to be a factor for the occurrence of holoprosencephaly as well as left right asymmetry. Though several factors are suspected as a cause of this deformity, the precise aetiopathogenesis is still under debate. Lack of knowledge might be due to paucity of data from cases due to its rarity. Hereby, we are presenting a case of agnathia, holoprosencephaly and situs inversus born at 32 wk of gestation by an alcoholic mother. Externally the child had agnathia and cyclopia. There was no mandible or any oral cavity. It was accompanied by noticeable limb deformity. Internally there was holoprosencephaly, situs inversus totalis with several visceral abnormalities. To the best of our knowledge this is the first case of agnathia, holoprosencephaly and situs inversus complex to be reported in an indexed literature from India. This report also strengthens the association of maternal alcoholism with occurrence of holoprosencephaly.
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http://dx.doi.org/10.7860/JCDR/2015/12733.5884 | DOI Listing |
J Clin Diagn Res
May 2015
Associate Professor, Department of Anatomy, Assam Medical College and Hospital, Dibrugarh, Assam, India .
Agnathia, holoprosencephaly and situs inversus complex is an extremely rare form of congenital malformation. Though a few cases have been reported from other parts of the world, to the best of our knowledge none has been reported from India so far. Maternal alcoholism is regarded as an important factor causing holoprosencephaly.
View Article and Find Full Text PDFGenesis
June 2014
Early Mammalian Development Laboratory, Research School of Biology, Evolution, Ecology and Genetics, The Australian National University, Canberra, ACT 0200, Australia.
The first molecular herald of organ asymmetry during murine embryogenesis is found at the periphery of the node in early-somite stage embryos. Asymmetric gene expression and calcium accumulation at the node occurs in response to a left-ward flow of extracellular fluid across the node, generated by motile cilia within the pit of the node and likely sensed by immotile cilia in the periphery of the node. The ciliation of node cells is controlled by a cascade of node-restricted transcription factor activity during mid-late gastrulation.
View Article and Find Full Text PDFGenet Couns
November 2010
Department of Genetics, Dr. Sami Ulus Maternity and Children's Hospital, Ankara, Turkey.
A case of otocephaly with anencephaly and meningomyelocele: Otocephaly is a rare lethal syndrome with microstomia, aglossia, agnathia, and synotia as major clinical features due to arrest in development of the first branchial arch. Some associated anomalies may be present as cyclopia, holoprosencephaly, cerebellar hypoplasia, situs inversus, and other visceral anomalies. We describe a case of fetus, spontaneously aborted in the 14th week of gestation with otocephaly complex (agnathia, synotia, microstomia) and associated anencephaly and meningomyelocele.
View Article and Find Full Text PDFAm J Med Genet C Semin Med Genet
February 2010
Medical Genetics Branch of the National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892-3717, USA.
Holoprosencephaly (HPE), the most common developmental disorder of the human forebrain, is occasionally associated with the spectrum of agnathia, or virtual absence of the mandible. This condition results in a constellation of structural cerebral and craniofacial abnormalities. Here we present two new patients and review 30 patients from the literature with HPE and variants of agnathia.
View Article and Find Full Text PDFFetal Pediatr Pathol
May 2007
Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama 07101, USA.
Otocephaly, characterized by mandibular hypoplasia or agnathia, ventromedial auricular malposition (melotia) and/or auricular fusion (synotia), and microstomia with oroglossal hypoplasia or aglossia, is an extremely rare anomalad, identified in less than 1 in 70,000 births. The malformation spectrum is essentially lethal, because of ventilatory problems, and represents a developmental field defect of blastogenesis primarily affecting thefirst branchial arch derivatives. Holoprosencephaly is the most commonly identified association, but skeletal, genitourinary, and cardiovascular anomalies, and situs inversus have been reported.
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