Topografía del espacio retroestíleo en fetos humanos

Abstract

The retrostyloid space has attracted the attention of numerous investigators, anatomists and surgeons, who have studied and described its location and the structures that compose it. He has received various names such as posterior parapharyngeal space (Lang, 1995), posterior laterofaringeo (Testut y Latarjet, 1983), and posterior subparotideo of Sébileau (Paturet, 1951). The limits of the retrostyloid space have not been studied during the fetal period, therefore, an analysis has been undertaken on 23 human fetuses. All of them belonging to the Institute of Embryology of the Complutense University of Madrid. Of them, 8 were appropriate based upon their degree of conservation, staining, and data that contribute to this study. The human fetuses were comprised of long vertex-coccyx of lengths of between 72 and 150 mm, from 12 to 17 weeks of gestational age, in order to determine which are the structures that contribute to delimit the retrostyloid space, as well as to know whether the elements of this space are surrounded by specific fascia. A study has also been undertaken on the relationships that each of the different elements have in this space...