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Nasal tumors

par Lamesch, Alfred ;Lamesch, Peter
Référence Newborn Surgery, Second Edition, CRC Press, page (715-720)
Publication Publié, 2003-01

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Résumé :

There are various types of congenital tumors and they may be classified in accordance with their embryonic origin (Box 76.1). At an early stage of development there is a protrusion of the forebrain and dura through the foramen cecum into the prenasal space, which is limited by frontal and nasal bones on the anterior aspect and a cartilaginous capsule posteriorly. During further development the dural process is sealed and the foramen obliterated. Any failure of this obliterating procedure leaves a canal, a pathway favoring extension of the glial tissue, hence the development of encephaloceles or gliomas.