Congenital malformations correspond to one of the main causes of embryonic loss during the gestational process. They result from interaction of several factors such as multifactor heredity, chromosomal and genetic alterations and environmental agents; however, unknown aetiology also can be present. In this article, we have used 10 embryos, from a frigorific area of Dracena, SP, Brazil, which were fixed in Bouin solution for a macro- and micro-scopic description. We could verify the presence of an encephalic tissue mass on the embryo's dorsal cranial area, resulting from the non-formation of part of the cranial cap and from the non-closing of cephalic neuropore and consequent neuroepithelial cells disorganization. In the abdominal area, the embryos did not show the complete fusion of the body lateral pleats during the abdominal wall formation, and the liver extruded into the amniotic cavity without involvement of the intestine.

Aos meus grandes amigos Hugo (Tibur), Artur (Flanders) e Bruno (Bundoli), pelos momentos de amizade e pelas conversas que tivemos, embora algum dia estejamos longe um do outro...lembrarei de vocês Amigos, e desses momentos na morada dos estudantes!!!.....OBRIGADOO Aos meus amigos colombianos Alex Genoy, Lenin Villamizar, Magda, Miguelito e Andrea pela amizade, pelos grandes momentos; Aos meus amigos chilenos Christian, Alvaro, Pedro e Mario pela amizade, pelos grandes momentos; As minhas amigas: Patrícia, Claudia Kanashiro, Alicia e Lorena pela amizade, atenção e disposição.

GALDOS-RIVEROS, A. C. Avaliação dos perfis metabolômicos, proteômicos, vias de proliferação e morte celular do saco vitelino de embriões bovinos. [Evaluation of metabolomic, proteomic profiles, proliferation and cell death pathways of the yolk sac in bovine embryos]. 2012. 165 f. Tese