OBJECT: The filum terminale externum (FTE) is the extradural component of the filum terminale internum and little attention has been dedicated to this structure in the literature. The authors theorized that the rare intrasacral ependymomas may originate from ependymal cell collections within the FTE. METHODS: To address this hypothesis, the FTE was dissected and analyzed histologically in 15 adult cadavers. None of the specimens was found to harbor ependymal or other glial cell collections. CONCLUSIONS: The authors found previously undescribed smooth-muscle cells within the FTE. Furthermore, histological analysis identified adipose, nerve, bone, and cartilage cells.
OBJECT: The filum terminale externum (FTE) is the extradural component of the filum terminale internum and little attention has been dedicated to this structure in the literature. The authors theorized that the rare intrasacral ependymomas may originate from ependymal cell collections within the FTE. METHODS: To address this hypothesis, the FTE was dissected and analyzed histologically in 15 adult cadavers. None of the specimens was found to harbor ependymal or other glial cell collections. CONCLUSIONS: The authors found previously undescribed smooth-muscle cells within the FTE. Furthermore, histological analysis identified adipose, nerve, bone, and cartilage cells.
Authors: Juan F Martínez-Lage; María José Almagro; Belén Ferri-Ñiguez; Virginia Izura Azanza; Cristina Serrano; Ernesto Domenech Journal: Childs Nerv Syst Date: 2010-10-27 Impact factor: 1.475
Authors: Elias Rizk; Nimer Adeeb; Ahmed E Hussein; R Shane Tubbs; Curtis J Rozzelle; W Jerry Oakes Journal: Childs Nerv Syst Date: 2013-06-07 Impact factor: 1.475
Authors: Nimer Adeeb; Martin M Mortazavi; Aman Deep; Christoph J Griessenauer; Koichi Watanabe; Mohammadali M Shoja; Marios Loukas; R Shane Tubbs Journal: Childs Nerv Syst Date: 2013-02-05 Impact factor: 1.475