The sella turcica in children with lumbosacral myelomeningocele

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Abstract
The purpose of the present study was to analyse the morphology of the sella turcica in children born with myelomeningocele. Profile radiographs from 16 children (nine females and seven males) born with myelomeningocele were analysed. The contour of the anterior wall of the sella turcica in myelomeningocele patients, instead of following the normal cranio-caudal direction, was always in an obliquely antero-posterior direction. The sella turcica thus appeared broad cranially with a diverging anterior wall, or with both diverging anterior and posterior walls. This appearance gave an impression of a wide sella turcica in myelomeningocele with less depth than normal. The investigation has drawn attention to the fact that congenital malformations in the axial skeleton, even though, as in the case of myelomeningocele, they are located far from the cranial base, may have manifested themselves in the cranial base as well. The pathogenetic relationship between these manifestations is to be found in the early embryonic structure, the notochord. With the concept of embryological developmental fields, defined as areas with a common developmental origin, such as the notochordal field involved in myelomeningocele, new ways seem to be emerging for an improvement of aetiologically based diagnosis and treatment.

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