The injection-erosion methods are the principal methods used for the study of the vascular anatomy of the liver. Some authors mention the technique for study of liver of dogs, pigs, hamsters, rabbits and cats, however they are scarce the works that mention the study of the hepatic anatomy of rats. This way it is important the knowledge of new preparation techniques for angioarquitetonic livers' models, making possible a better knowledge of the anatomy and consequently, improving the operative approach of this organ significantly. Due above of that the objective of the present study is to demonstrate the technique for accomplishment of veined corrosing casting of the rat's liver. 10 Rattus norvegicus albinus (Wistar) were used, with corporal mass between 250 and 300g, to verify the functionality of the method. The technique for preparation of vascular model presents three fundamental times: catetherization of the portal vein, intra-abdominal vena cava and intra-thoracic vena cava; prepare and infusion of the solution of acrylic; erosion in hydrochloric acid and maceration of the anatomic piece. We concluded that, this technique is feasible and it presents as advantage a low cost (30 dollars) and with the use of two colors different from ink it can separate the portal vascular system of the hepatic veins drainage system, therefore being capable to mold the structure vascular liverwort of rats.
Acrylates; Corrosion casting; Models anatomic; Liver; Portal system; Rats
