title: MDCT diagnosis of the child with posterior plagiocephaly.
abstract: OBJECTIVE
  In this article, we review the normal anatomy and development of the posterior skull base and describe distinguishing imaging features of the two most common causes of posterior plagiocephaly: posterior deformational plagiocephaly and unilateral lambdoid synostosis. We also describe three unusual cases of posterior plagiocephaly, including asymmetric premature fusion of the anterior and posterior intraoccipital synchondroses, with diagnoses enabled by volume-reformatted MDCT.
  
  
  CONCLUSIONS
  Three-dimensional reformatted MDCT enables accurate diagnosis of common and rare causes of posterior plagiocephaly in children.
authors.affiliation: Department of Radiology, University of Washington, 4800 Sand Point Way NE, PO Box 5371/CH-69, Seattle, WA 98105-0371, USA. raymond.sze@seattle.childrens.org
authors.forename: Raymond W
authors.initials: RW
authors.lastname: Sze
authors.forename: Richard A
authors.initials: RA
authors.lastname: Hopper
authors.forename: Victor
authors.initials: V
authors.lastname: Ghioni
authors.forename: Joseph S
authors.initials: JS
authors.lastname: Gruss
authors.forename: Richard G
authors.initials: RG
authors.lastname: Ellenbogen
authors.forename: Darcy
authors.initials: D
authors.lastname: King
authors.forename: Anne V
authors.initials: AV
authors.lastname: Hing
authors.forename: Michael L
authors.initials: ML
authors.lastname: Cunningham
mesh_terms: D002675:Child, Preschool; D003393:Cranial Sutures / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D021621:Imaging, Three-Dimensional; D007223:Infant; D007231:Infant, Newborn; D049068:Plagiocephaly, Nonsynostotic / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed