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Revista argentina de neurocirugía

versión On-line ISSN 1850-1532

Resumen

FONTANA, Horacio et al. Los recesos del IV ventrículo. Rev. argent. neurocir. [online]. 2006, vol.20, n.3, pp. 101-113. ISSN 1850-1532.

Objective: To study the anatomy of the IV ventricle recesses and their relationship to the surgical approaches. Methods: Three specimens of brain stem and cerebellum were prepared sistematically and the fibers were dissected with the Klingler's method. Two acrylic casts were obtained in order to analize the cavity shape details of the IV ventricle. Results. The recesses of the IV ventricle are better understood by the inspection of the casts. In the midline lies the posterior recess. There are two pairs of symmetrical recesses: the posterolateral and the lateral. The laters, are two ducts that drain into the cerebello ponto medullary angle through the foramina of Luschka. The excision of the amigdala helps to study the anatomical relations "in situ". The roof of the lateral recess is made up by cochlear fibers medially and the flocculus peduncle laterally. The dentate nucleus is separated from the posterolateral recess by fibers from of the flocculus pedicle. Conclusion: The IV ventricle has five recesses. Casts of the ventricle gave a better idea of their tridimensional disposition and relationships. With a proper anatomical knowledge, a rational non traumatic access to the different structures can be achieved.

Palabras llave : Flocculus; IV ventricle; Posterolateral recess.

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