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Percutaneous transhepatic lymphography (PTL) for visualizing metastasized lesions from hepatocellular carcinoma

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Abstract

We performed percutaneous transhepatic lymphography (PTL) in order to evaluate lymphatic flow, especially metastatic lymph nodes, in patients with hepatocellular carcinoma (HCC). Lymphatics could be visualized in eight out of ten patients (80%), and LPDR (iodized oil) spreading showed its accumulation in two different patterns. In one type, the oil was limited to the lymphatics around the hepatic hilum, and in the other, it spread to the periaortic lymphatics. lymph nodes were visualized in four of the eight patients. This entire procedure was performed within 30 min without any side effects. Accordingly, we recommend this method for evaluating lymphatic metastases from hepatocellular carcinoma.

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