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5 Possible Causes for Anterior Fontanelle Open in Adults

  • Cleidocranial Dysplasia

    Cleidocranial dysplasia is a rare genetic disorder characterized by abnormal development of large parts of the axial skeleton, pelvis and limbs. Malformations of the cranial bones are among the most prominent symptoms of CCD. Fontanelles close late or not at all, thus leaving soft spots on top of the head. Similarly,[…][symptoma.com]

  • Pyknodysostosis

    Pyknodysostosis is a rare, genetic, autosomal recessive condition characterized by short stature, generalized bone sclerosis, and oral manifestations such as maxillary atresia and an increase of the mandibular angle. The main purpose of this article was to report a case of pyknodysostosis, describing the[…][ncbi.nlm.nih.gov]

  • Communicating Hydrocephalus

    fontanelle when it is still open) Findings: enlarged lateral ventricles MRI (preferred for children) or CT Indication: older infants (when fontanelle is already closed, typically[amboss.com] 6 months of age) or adults Features of acute hydrocephalus: enlarged ventricles Temporal horn dilation 2 mm Evans ratio 30% Sulcal enlargement Mickey Mouse ventricles Upward[amboss.com] Changes in vital signs resulting from brainstem compression Ultrasonography Indication: clinical suspicion during antenatal period or in infants 6 months of age (through the anterior[amboss.com]

  • Congenital Communicating Hydrocephalus

    fontanelle when it is still open) Findings: enlarged lateral ventricles MRI (preferred for children) or CT Indication: older infants (when fontanelle is already closed, typically[amboss.com] 6 months of age) or adults Features of acute hydrocephalus: enlarged ventricles Temporal horn dilation 2 mm Evans ratio 30% Sulcal enlargement Mickey Mouse ventricles Upward[amboss.com] Changes in vital signs resulting from brainstem compression Ultrasonography Indication: clinical suspicion during antenatal period or in infants 6 months of age (through the anterior[amboss.com]

  • Endemic Cretinism

    Furthermore, adult African (Uele) ME cretins ( Melot et al. 1962 ) have open anterior fontanelles, also evident in DC, HC and possibly replicated in the damaged LB1.[rspb.royalsocietypublishing.org]

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