title: Unilateral isolated frontosphenoidal craniosynostosis causing frontal plagiocephaly.
abstract: Synostotic frontal plagiocephaly is most commonly caused by frontoparietal (unicoronal) synostosis, but may be caused by other fusions along the coronal hemiring. Frontosphenoidal synostosis is a rare cause of frontal plagiocephaly, with only five previously reported cases. We present the case of an 8-month-old male infant with frontal plagiocephaly caused by unilateral isolated frontosphenoidal synostosis mimicking frontoparietal (unicoronal) synostosis. The clinical and radiological features included flattened ipsilateral forehead, retruded ipsilateral maxilla, a midline chin, contralateral deviation of the nasal root and endocranial base, and anomalies of the bony orbit. Unilateral isolated frontosphenoidal synostosis may be misdiagnosed as unicoronal synostosis. Careful physical and radiological assessment is necessary to recognise this synostotic disorder of the coronal hemiring.
authors.affiliation: Craniofacial Unit, Great Ormond Street Hospital for Children, Great Ormond Street, London WC1N 3JH, UK.
authors.forename: Damian D
authors.initials: DD
authors.lastname: Marucci
authors.forename: Barry M
authors.initials: BM
authors.lastname: Jones
authors.forename: David J
authors.initials: DJ
authors.lastname: Dunaway
authors.forename: Richard D
authors.initials: RD
authors.lastname: Hayward
mesh_terms: D002508:Cephalometry; D003398:Craniosynostoses / Q000150:complications* / Q000000981:diagnostic imaging; D005624:Frontal Bone / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D008297:Male; D013100:Sphenoid Bone / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed