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Solitary Hepatic VX2 Tumor Model and Its CT Findings in Rabbits  

Lee, Hae-Beom (College of Veterinary Medicine, Chonbuk National University)
Lee, Ki-Chang (College of Veterinary Medicine, Chonbuk National University)
Publication Information
Journal of Veterinary Clinics / v.23, no.4, 2006 , pp. 388-392 More about this Journal
Abstract
To verify the solitary nodular hepatocellular tumor model induced by intraparenchymal VX2 tumor cell injection and assess the diagnostic imaging character by computed tomography in rabbits. The tumor cell fragment ($1{\sim}2mm^3$) was loaded in Seldinger needle and directly implanted into the livers of 80 New Zealand white rabbits. The tumor size and patterns of tumor growth were evaluated using spiral computed tomography (CT) at 1, 2, and 3 weeks after tumor implantation. A solitary nodular tumor was successfully created in 82.5% (66/80). The mortality rate was 5% (4/80). The tumor sizes measured were 7.46.3, 14.210.8, 16.212.6 cm at 1, 2, and 3 weeks after tumor implantation on arterial phase CT images. The tumors were round to oval shape with peripheral enhancement and central hypoattenuation on arterial phase, and hypoatteuated wash-out pattern on portal phase. It is considered that inoculation of tumor fragment loaded in Seldinger needle is useful and practical method for creating a solitary hepatic tumor. And CT scanning are valuable to investigate the hepatic tumor and compatible to the observations on macro-and microscopic findings.
Keywords
Tumor model; liver; rabbit; VX2 carcinoma; computed tomography;
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