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False positive uptake of metaiodobenzylguanidine in hepatocellular carcinoma

¹ Department of Radiology, Institute of Medical Science, University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639 and Departments of ² Gastroenterology and ³ Radiology, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan

View larger version (174K): [in a new window]   Figure 1. Anterior abdominal image obtained 4 h postinjection of 123I-metaiodobenzylguanidine. Photopenic areas are seen in the liver.

View larger version (175K): [in a new window]   Figure 2. Anterior abdominal view obtained 24 h post injection of 123I-metaiodobenzylguanidine. Inhomogeneously increased uptake is noted in the liver.

View larger version (107K): [in a new window]   Figure 3. CT of the upper abdomen imaged during the portal venous phase after contrast medium injection. A large mass lesion is demonstrated in the liver.